diff options
Diffstat (limited to 'drivers/usb')
35 files changed, 242 insertions, 118 deletions
diff --git a/drivers/usb/atm/cxacru.c b/drivers/usb/atm/cxacru.c index 5ed4ae07bac1..6789089e2461 100644 --- a/drivers/usb/atm/cxacru.c +++ b/drivers/usb/atm/cxacru.c @@ -485,7 +485,7 @@ static int cxacru_cm(struct cxacru_data *instance, enum cxacru_cm_request cm, usb_err(instance->usbatm, "requested transfer size too large (%d, %d)\n", wbuflen, rbuflen); ret = -ENOMEM; - goto fail; + goto err; } mutex_lock(&instance->cm_serialize); @@ -565,6 +565,7 @@ static int cxacru_cm(struct cxacru_data *instance, enum cxacru_cm_request cm, dbg("cm %#x", cm); fail: mutex_unlock(&instance->cm_serialize); +err: return ret; } diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index 326dd7f65ee9..b3d5a23ab56f 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -1376,6 +1376,15 @@ static struct usb_device_id acm_ids[] = { { USB_DEVICE(0x0572, 0x1324), /* Conexant USB MODEM RD02-D400 */ .driver_info = NO_UNION_NORMAL, /* has no union descriptor */ }, + { USB_DEVICE(0x22b8, 0x6425), /* Motorola MOTOMAGX phones */ + }, + { USB_DEVICE(0x0572, 0x1329), /* Hummingbird huc56s (Conexant) */ + .driver_info = NO_UNION_NORMAL, /* union descriptor misplaced on + data interface instead of + communications interface. + Maybe we should define a new + quirk for this. */ + }, /* control interfaces with various AT-command sets */ { USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ACM, diff --git a/drivers/usb/class/usbtmc.c b/drivers/usb/class/usbtmc.c index 0f5c05f6f9df..c40a9b284cc9 100644 --- a/drivers/usb/class/usbtmc.c +++ b/drivers/usb/class/usbtmc.c @@ -50,6 +50,7 @@ static struct usb_device_id usbtmc_devices[] = { { USB_INTERFACE_INFO(USB_CLASS_APP_SPEC, 3, 0), }, + { USB_INTERFACE_INFO(USB_CLASS_APP_SPEC, 3, 1), }, { 0, } /* terminating entry */ }; MODULE_DEVICE_TABLE(usb, usbtmc_devices); @@ -106,12 +107,13 @@ static int usbtmc_open(struct inode *inode, struct file *filp) { struct usb_interface *intf; struct usbtmc_device_data *data; - int retval = -ENODEV; + int retval = 0; intf = usb_find_interface(&usbtmc_driver, iminor(inode)); if (!intf) { printk(KERN_ERR KBUILD_MODNAME ": can not find device for minor %d", iminor(inode)); + retval = -ENODEV; goto exit; } diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index 7513bb083c15..6585f527e381 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -359,11 +359,6 @@ static void destroy_async(struct dev_state *ps, struct list_head *list) spin_lock_irqsave(&ps->lock, flags); } spin_unlock_irqrestore(&ps->lock, flags); - as = async_getcompleted(ps); - while (as) { - free_async(as); - as = async_getcompleted(ps); - } } static void destroy_async_on_interface(struct dev_state *ps, @@ -643,6 +638,7 @@ static int usbdev_release(struct inode *inode, struct file *file) struct dev_state *ps = file->private_data; struct usb_device *dev = ps->dev; unsigned int ifnum; + struct async *as; usb_lock_device(dev); @@ -661,6 +657,12 @@ static int usbdev_release(struct inode *inode, struct file *file) usb_unlock_device(dev); usb_put_dev(dev); put_pid(ps->disc_pid); + + as = async_getcompleted(ps); + while (as) { + free_async(as); + as = async_getcompleted(ps); + } kfree(ps); return 0; } diff --git a/drivers/usb/core/hcd-pci.c b/drivers/usb/core/hcd-pci.c index c54fc40458b1..a4301dc02d27 100644 --- a/drivers/usb/core/hcd-pci.c +++ b/drivers/usb/core/hcd-pci.c @@ -298,19 +298,6 @@ int usb_hcd_pci_suspend(struct pci_dev *dev, pm_message_t message) EXPORT_SYMBOL_GPL(usb_hcd_pci_suspend); /** - * usb_hcd_pci_resume_early - resume a PCI-based HCD before IRQs are enabled - * @dev: USB Host Controller being resumed - * - * Store this function in the HCD's struct pci_driver as .resume_early. - */ -int usb_hcd_pci_resume_early(struct pci_dev *dev) -{ - pci_restore_state(dev); - return 0; -} -EXPORT_SYMBOL_GPL(usb_hcd_pci_resume_early); - -/** * usb_hcd_pci_resume - power management resume of a PCI-based HCD * @dev: USB Host Controller being resumed * @@ -333,6 +320,8 @@ int usb_hcd_pci_resume(struct pci_dev *dev) } #endif + pci_restore_state(dev); + hcd = pci_get_drvdata(dev); if (hcd->state != HC_STATE_SUSPENDED) { dev_dbg(hcd->self.controller, diff --git a/drivers/usb/core/hcd.h b/drivers/usb/core/hcd.h index 5b94a56bec23..f750eb1ab595 100644 --- a/drivers/usb/core/hcd.h +++ b/drivers/usb/core/hcd.h @@ -257,7 +257,6 @@ extern void usb_hcd_pci_remove(struct pci_dev *dev); #ifdef CONFIG_PM extern int usb_hcd_pci_suspend(struct pci_dev *dev, pm_message_t msg); -extern int usb_hcd_pci_resume_early(struct pci_dev *dev); extern int usb_hcd_pci_resume(struct pci_dev *dev); #endif /* CONFIG_PM */ diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c index 31fb204f44c6..49e7f56e0d7f 100644 --- a/drivers/usb/core/message.c +++ b/drivers/usb/core/message.c @@ -653,7 +653,7 @@ int usb_get_descriptor(struct usb_device *dev, unsigned char type, if (result <= 0 && result != -ETIMEDOUT) continue; if (result > 1 && ((u8 *)buf)[1] != type) { - result = -EPROTO; + result = -ENODATA; continue; } break; @@ -696,8 +696,13 @@ static int usb_get_string(struct usb_device *dev, unsigned short langid, USB_REQ_GET_DESCRIPTOR, USB_DIR_IN, (USB_DT_STRING << 8) + index, langid, buf, size, USB_CTRL_GET_TIMEOUT); - if (!(result == 0 || result == -EPIPE)) - break; + if (result == 0 || result == -EPIPE) + continue; + if (result > 1 && ((u8 *) buf)[1] != USB_DT_STRING) { + result = -ENODATA; + continue; + } + break; } return result; } diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index 3219d137340a..e55fef52a5dc 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -191,6 +191,7 @@ config USB_GADGET_OMAP boolean "OMAP USB Device Controller" depends on ARCH_OMAP select ISP1301_OMAP if MACH_OMAP_H2 || MACH_OMAP_H3 || MACH_OMAP_H4_OTG + select USB_OTG_UTILS if ARCH_OMAP help Many Texas Instruments OMAP processors have flexible full speed USB device controllers, with support for up to 30 diff --git a/drivers/usb/gadget/f_obex.c b/drivers/usb/gadget/f_obex.c index 80c2e7e9622f..38aa896cc5db 100644 --- a/drivers/usb/gadget/f_obex.c +++ b/drivers/usb/gadget/f_obex.c @@ -366,9 +366,9 @@ obex_bind(struct usb_configuration *c, struct usb_function *f) f->hs_descriptors = usb_copy_descriptors(hs_function); obex->hs.obex_in = usb_find_endpoint(hs_function, - f->descriptors, &obex_hs_ep_in_desc); + f->hs_descriptors, &obex_hs_ep_in_desc); obex->hs.obex_out = usb_find_endpoint(hs_function, - f->descriptors, &obex_hs_ep_out_desc); + f->hs_descriptors, &obex_hs_ep_out_desc); } /* Avoid letting this gadget enumerate until the userspace diff --git a/drivers/usb/gadget/file_storage.c b/drivers/usb/gadget/file_storage.c index b10fa31cc915..1ab9dac7e12d 100644 --- a/drivers/usb/gadget/file_storage.c +++ b/drivers/usb/gadget/file_storage.c @@ -3879,7 +3879,11 @@ static int __init check_parameters(struct fsg_dev *fsg) mod_data.protocol_type = USB_SC_SCSI; mod_data.protocol_name = "Transparent SCSI"; - if (gadget_is_sh(fsg->gadget)) + /* Some peripheral controllers are known not to be able to + * halt bulk endpoints correctly. If one of them is present, + * disable stalls. + */ + if (gadget_is_sh(fsg->gadget) || gadget_is_at91(fsg->gadget)) mod_data.can_stall = 0; if (mod_data.release == 0xffff) { // Parameter wasn't set diff --git a/drivers/usb/gadget/fsl_usb2_udc.c b/drivers/usb/gadget/fsl_usb2_udc.c index f3c6703cffda..d8d9a52a44b3 100644 --- a/drivers/usb/gadget/fsl_usb2_udc.c +++ b/drivers/usb/gadget/fsl_usb2_udc.c @@ -404,7 +404,10 @@ static void struct_ep_qh_setup(struct fsl_udc *udc, unsigned char ep_num, } if (zlt) tmp |= EP_QUEUE_HEAD_ZLT_SEL; + p_QH->max_pkt_length = cpu_to_le32(tmp); + p_QH->next_dtd_ptr = 1; + p_QH->size_ioc_int_sts = 0; return; } diff --git a/drivers/usb/gadget/pxa25x_udc.c b/drivers/usb/gadget/pxa25x_udc.c index 9b36205c5759..0ce4e2819847 100644 --- a/drivers/usb/gadget/pxa25x_udc.c +++ b/drivers/usb/gadget/pxa25x_udc.c @@ -904,8 +904,8 @@ static void pxa25x_ep_fifo_flush(struct usb_ep *_ep) /* most IN status is the same, but ISO can't stall */ *ep->reg_udccs = UDCCS_BI_TPC|UDCCS_BI_FTF|UDCCS_BI_TUR - | (ep->bmAttributes == USB_ENDPOINT_XFER_ISOC) - ? 0 : UDCCS_BI_SST; + | (ep->bmAttributes == USB_ENDPOINT_XFER_ISOC + ? 0 : UDCCS_BI_SST); } diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 4725d15d096f..e551bb38852b 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -485,6 +485,7 @@ static int ehci_init(struct usb_hcd *hcd) * periodic_size can shrink by USBCMD update if hcc_params allows. */ ehci->periodic_size = DEFAULT_I_TDPS; + INIT_LIST_HEAD(&ehci->cached_itd_list); if ((retval = ehci_mem_init(ehci, GFP_KERNEL)) < 0) return retval; @@ -497,6 +498,7 @@ static int ehci_init(struct usb_hcd *hcd) ehci->reclaim = NULL; ehci->next_uframe = -1; + ehci->clock_frame = -1; /* * dedicate a qh for the async ring head, since we couldn't unlink diff --git a/drivers/usb/host/ehci-mem.c b/drivers/usb/host/ehci-mem.c index 0431397836f6..10d52919abbb 100644 --- a/drivers/usb/host/ehci-mem.c +++ b/drivers/usb/host/ehci-mem.c @@ -128,6 +128,7 @@ static inline void qh_put (struct ehci_qh *qh) static void ehci_mem_cleanup (struct ehci_hcd *ehci) { + free_cached_itd_list(ehci); if (ehci->async) qh_put (ehci->async); ehci->async = NULL; diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c index bb21fb0a4969..abb9a7706ec7 100644 --- a/drivers/usb/host/ehci-pci.c +++ b/drivers/usb/host/ehci-pci.c @@ -432,7 +432,6 @@ static struct pci_driver ehci_pci_driver = { #ifdef CONFIG_PM .suspend = usb_hcd_pci_suspend, - .resume_early = usb_hcd_pci_resume_early, .resume = usb_hcd_pci_resume, #endif .shutdown = usb_hcd_pci_shutdown, diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c index 3712b925b315..ecc9b66c03cd 100644 --- a/drivers/usb/host/ehci-q.c +++ b/drivers/usb/host/ehci-q.c @@ -1095,7 +1095,8 @@ static void start_unlink_async (struct ehci_hcd *ehci, struct ehci_qh *qh) prev->qh_next = qh->qh_next; wmb (); - if (unlikely (ehci_to_hcd(ehci)->state == HC_STATE_HALT)) { + /* If the controller isn't running, we don't have to wait for it */ + if (unlikely(!HC_IS_RUNNING(ehci_to_hcd(ehci)->state))) { /* if (unlikely (qh->reclaim != 0)) * this will recurse, probably not much */ diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c index a081ee65bde6..1d0b49e3f192 100644 --- a/drivers/usb/host/ehci-sched.c +++ b/drivers/usb/host/ehci-sched.c @@ -1004,7 +1004,8 @@ iso_stream_put(struct ehci_hcd *ehci, struct ehci_iso_stream *stream) is_in = (stream->bEndpointAddress & USB_DIR_IN) ? 0x10 : 0; stream->bEndpointAddress &= 0x0f; - stream->ep->hcpriv = NULL; + if (stream->ep) + stream->ep->hcpriv = NULL; if (stream->rescheduled) { ehci_info (ehci, "ep%d%s-iso rescheduled " @@ -1535,7 +1536,7 @@ itd_link_urb ( struct ehci_itd, itd_list); list_move_tail (&itd->itd_list, &stream->td_list); itd->stream = iso_stream_get (stream); - itd->urb = usb_get_urb (urb); + itd->urb = urb; itd_init (ehci, stream, itd); } @@ -1644,7 +1645,7 @@ itd_complete ( (void) disable_periodic(ehci); ehci_to_hcd(ehci)->self.bandwidth_isoc_reqs--; - if (unlikely (list_empty (&stream->td_list))) { + if (unlikely(list_is_singular(&stream->td_list))) { ehci_to_hcd(ehci)->self.bandwidth_allocated -= stream->bandwidth; ehci_vdbg (ehci, @@ -1653,14 +1654,27 @@ itd_complete ( (stream->bEndpointAddress & USB_DIR_IN) ? "in" : "out"); } iso_stream_put (ehci, stream); - /* OK to recycle this ITD now that its completion callback ran. */ + done: - usb_put_urb(urb); itd->urb = NULL; - itd->stream = NULL; - list_move(&itd->itd_list, &stream->free_list); - iso_stream_put(ehci, stream); - + if (ehci->clock_frame != itd->frame || itd->index[7] != -1) { + /* OK to recycle this ITD now. */ + itd->stream = NULL; + list_move(&itd->itd_list, &stream->free_list); + iso_stream_put(ehci, stream); + } else { + /* HW might remember this ITD, so we can't recycle it yet. + * Move it to a safe place until a new frame starts. + */ + list_move(&itd->itd_list, &ehci->cached_itd_list); + if (stream->refcount == 2) { + /* If iso_stream_put() were called here, stream + * would be freed. Instead, just prevent reuse. + */ + stream->ep->hcpriv = NULL; + stream->ep = NULL; + } + } return retval; } @@ -1934,7 +1948,7 @@ sitd_link_urb ( struct ehci_sitd, sitd_list); list_move_tail (&sitd->sitd_list, &stream->td_list); sitd->stream = iso_stream_get (stream); - sitd->urb = usb_get_urb (urb); + sitd->urb = urb; sitd_patch(ehci, stream, sitd, sched, packet); sitd_link (ehci, (next_uframe >> 3) % ehci->periodic_size, @@ -2019,7 +2033,7 @@ sitd_complete ( (void) disable_periodic(ehci); ehci_to_hcd(ehci)->self.bandwidth_isoc_reqs--; - if (list_empty (&stream->td_list)) { + if (list_is_singular(&stream->td_list)) { ehci_to_hcd(ehci)->self.bandwidth_allocated -= stream->bandwidth; ehci_vdbg (ehci, @@ -2030,7 +2044,6 @@ sitd_complete ( iso_stream_put (ehci, stream); /* OK to recycle this SITD now that its completion callback ran. */ done: - usb_put_urb(urb); sitd->urb = NULL; sitd->stream = NULL; list_move(&sitd->sitd_list, &stream->free_list); @@ -2101,6 +2114,20 @@ done: /*-------------------------------------------------------------------------*/ +static void free_cached_itd_list(struct ehci_hcd *ehci) +{ + struct ehci_itd *itd, *n; + + list_for_each_entry_safe(itd, n, &ehci->cached_itd_list, itd_list) { + struct ehci_iso_stream *stream = itd->stream; + itd->stream = NULL; + list_move(&itd->itd_list, &stream->free_list); + iso_stream_put(ehci, stream); + } +} + +/*-------------------------------------------------------------------------*/ + static void scan_periodic (struct ehci_hcd *ehci) { @@ -2115,10 +2142,17 @@ scan_periodic (struct ehci_hcd *ehci) * Touches as few pages as possible: cache-friendly. */ now_uframe = ehci->next_uframe; - if (HC_IS_RUNNING (ehci_to_hcd(ehci)->state)) + if (HC_IS_RUNNING(ehci_to_hcd(ehci)->state)) { clock = ehci_readl(ehci, &ehci->regs->frame_index); - else + clock_frame = (clock >> 3) % ehci->periodic_size; + } else { clock = now_uframe + mod - 1; + clock_frame = -1; + } + if (ehci->clock_frame != clock_frame) { + free_cached_itd_list(ehci); + ehci->clock_frame = clock_frame; + } clock %= mod; clock_frame = clock >> 3; @@ -2277,6 +2311,10 @@ restart: /* rescan the rest of this frame, then ... */ clock = now; clock_frame = clock >> 3; + if (ehci->clock_frame != clock_frame) { + free_cached_itd_list(ehci); + ehci->clock_frame = clock_frame; + } } else { now_uframe++; now_uframe %= mod; diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h index fb7054ccf4fc..262b00c9b334 100644 --- a/drivers/usb/host/ehci.h +++ b/drivers/usb/host/ehci.h @@ -87,6 +87,10 @@ struct ehci_hcd { /* one per controller */ int next_uframe; /* scan periodic, start here */ unsigned periodic_sched; /* periodic activity count */ + /* list of itds completed while clock_frame was still active */ + struct list_head cached_itd_list; + unsigned clock_frame; + /* per root hub port */ unsigned long reset_done [EHCI_MAX_ROOT_PORTS]; @@ -220,6 +224,8 @@ timer_action (struct ehci_hcd *ehci, enum ehci_timer_action action) } } +static void free_cached_itd_list(struct ehci_hcd *ehci); + /*-------------------------------------------------------------------------*/ #include <linux/usb/ehci_def.h> diff --git a/drivers/usb/host/ohci-pci.c b/drivers/usb/host/ohci-pci.c index 5d625c3fd423..f9961b4c0da3 100644 --- a/drivers/usb/host/ohci-pci.c +++ b/drivers/usb/host/ohci-pci.c @@ -487,7 +487,6 @@ static struct pci_driver ohci_pci_driver = { #ifdef CONFIG_PM .suspend = usb_hcd_pci_suspend, - .resume_early = usb_hcd_pci_resume_early, .resume = usb_hcd_pci_resume, #endif diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c index 944f7e0ca4df..cf5e4cf7ea42 100644 --- a/drivers/usb/host/uhci-hcd.c +++ b/drivers/usb/host/uhci-hcd.c @@ -942,7 +942,6 @@ static struct pci_driver uhci_pci_driver = { #ifdef CONFIG_PM .suspend = usb_hcd_pci_suspend, - .resume_early = usb_hcd_pci_resume_early, .resume = usb_hcd_pci_resume, #endif /* PM */ }; diff --git a/drivers/usb/host/whci/asl.c b/drivers/usb/host/whci/asl.c index 2291c5f5af51..958751ccea43 100644 --- a/drivers/usb/host/whci/asl.c +++ b/drivers/usb/host/whci/asl.c @@ -227,13 +227,13 @@ void scan_async_work(struct work_struct *work) * Now that the ASL is updated, complete the removal of any * removed qsets. */ - spin_lock(&whc->lock); + spin_lock_irq(&whc->lock); list_for_each_entry_safe(qset, t, &whc->async_removed_list, list_node) { qset_remove_complete(whc, qset); } - spin_unlock(&whc->lock); + spin_unlock_irq(&whc->lock); } /** diff --git a/drivers/usb/host/whci/pzl.c b/drivers/usb/host/whci/pzl.c index 7dc85a0bee7c..df8b85f07092 100644 --- a/drivers/usb/host/whci/pzl.c +++ b/drivers/usb/host/whci/pzl.c @@ -255,13 +255,13 @@ void scan_periodic_work(struct work_struct *work) * Now that the PZL is updated, complete the removal of any * removed qsets. */ - spin_lock(&whc->lock); + spin_lock_irq(&whc->lock); list_for_each_entry_safe(qset, t, &whc->periodic_removed_list, list_node) { qset_remove_complete(whc, qset); } - spin_unlock(&whc->lock); + spin_unlock_irq(&whc->lock); } /** diff --git a/drivers/usb/image/mdc800.c b/drivers/usb/image/mdc800.c index 878c77ca086e..972f20b3406c 100644 --- a/drivers/usb/image/mdc800.c +++ b/drivers/usb/image/mdc800.c @@ -499,6 +499,7 @@ static int mdc800_usb_probe (struct usb_interface *intf, retval = usb_register_dev(intf, &mdc800_class); if (retval) { dev_err(&intf->dev, "Not able to get a minor for this device.\n"); + mutex_unlock(&mdc800->io_lock); return -ENODEV; } diff --git a/drivers/usb/misc/adutux.c b/drivers/usb/misc/adutux.c index 7b6922e08ed1..203526542013 100644 --- a/drivers/usb/misc/adutux.c +++ b/drivers/usb/misc/adutux.c @@ -376,7 +376,7 @@ static int adu_release(struct inode *inode, struct file *file) if (dev->open_count <= 0) { dbg(1," %s : device not opened", __func__); retval = -ENODEV; - goto exit; + goto unlock; } adu_release_internal(dev); @@ -385,9 +385,9 @@ static int adu_release(struct inode *inode, struct file *file) if (!dev->open_count) /* ... and we're the last user */ adu_delete(dev); } - -exit: +unlock: mutex_unlock(&adutux_mutex); +exit: dbg(2," %s : leave, return value %d", __func__, retval); return retval; } diff --git a/drivers/usb/misc/vstusb.c b/drivers/usb/misc/vstusb.c index 63dff9ba73c5..f26ea8dc1577 100644 --- a/drivers/usb/misc/vstusb.c +++ b/drivers/usb/misc/vstusb.c @@ -401,6 +401,7 @@ static ssize_t vstusb_write(struct file *file, const char __user *buffer, } if (copy_from_user(buf, buffer, count)) { + mutex_unlock(&vstdev->lock); dev_err(&dev->dev, "%s: can't copy_from_user\n", __func__); retval = -EFAULT; goto exit; diff --git a/drivers/usb/musb/davinci.c b/drivers/usb/musb/davinci.c index 5a8fd5d57a11..2dc7606f319c 100644 --- a/drivers/usb/musb/davinci.c +++ b/drivers/usb/musb/davinci.c @@ -377,18 +377,8 @@ int __init musb_platform_init(struct musb *musb) u32 revision; musb->mregs += DAVINCI_BASE_OFFSET; -#if 0 - /* REVISIT there's something odd about clocking, this - * didn't appear do the job ... - */ - musb->clock = clk_get(pDevice, "usb"); - if (IS_ERR(musb->clock)) - return PTR_ERR(musb->clock); - status = clk_enable(musb->clock); - if (status < 0) - return -ENODEV; -#endif + clk_enable(musb->clock); /* returns zero if e.g. not clocked */ revision = musb_readl(tibase, DAVINCI_USB_VERSION_REG); @@ -453,5 +443,8 @@ int musb_platform_exit(struct musb *musb) } phy_off(); + + clk_disable(musb->clock); + return 0; } diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c index 2cc34fa05b73..af77e4659006 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -115,7 +115,7 @@ unsigned musb_debug; -module_param(musb_debug, uint, S_IRUGO | S_IWUSR); +module_param_named(debug, musb_debug, uint, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(debug, "Debug message level. Default = 0"); #define DRIVER_AUTHOR "Mentor Graphics, Texas Instruments, Nokia" @@ -767,6 +767,7 @@ static irqreturn_t musb_stage2_irq(struct musb *musb, u8 int_usb, #ifdef CONFIG_USB_MUSB_HDRC_HCD case OTG_STATE_A_HOST: case OTG_STATE_A_SUSPEND: + usb_hcd_resume_root_hub(musb_to_hcd(musb)); musb_root_disconnect(musb); if (musb->a_wait_bcon != 0) musb_platform_try_idle(musb, jiffies @@ -1815,7 +1816,7 @@ static void musb_free(struct musb *musb) #ifdef CONFIG_SYSFS device_remove_file(musb->controller, &dev_attr_mode); device_remove_file(musb->controller, &dev_attr_vbus); -#ifdef CONFIG_USB_MUSB_OTG +#ifdef CONFIG_USB_GADGET_MUSB_HDRC device_remove_file(musb->controller, &dev_attr_srp); #endif #endif @@ -2063,7 +2064,7 @@ fail2: #ifdef CONFIG_SYSFS device_remove_file(musb->controller, &dev_attr_mode); device_remove_file(musb->controller, &dev_attr_vbus); -#ifdef CONFIG_USB_MUSB_OTG +#ifdef CONFIG_USB_GADGET_MUSB_HDRC device_remove_file(musb->controller, &dev_attr_srp); #endif #endif @@ -2243,10 +2244,10 @@ static int __init musb_init(void) return platform_driver_probe(&musb_driver, musb_probe); } -/* make us init after usbcore and before usb - * gadget and host-side drivers start to register +/* make us init after usbcore and i2c (transceivers, regulators, etc) + * and before usb gadget and host-side drivers start to register */ -subsys_initcall(musb_init); +fs_initcall(musb_init); static void __exit musb_cleanup(void) { diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c index 4ea305387981..c7ebd0867fcc 100644 --- a/drivers/usb/musb/musb_gadget.c +++ b/drivers/usb/musb/musb_gadget.c @@ -575,7 +575,7 @@ static void rxstate(struct musb *musb, struct musb_request *req) struct usb_request *request = &req->request; struct musb_ep *musb_ep = &musb->endpoints[epnum].ep_out; void __iomem *epio = musb->endpoints[epnum].regs; - u16 fifo_count = 0; + unsigned fifo_count = 0; u16 len = musb_ep->packet_sz; csr = musb_readw(epio, MUSB_RXCSR); @@ -687,7 +687,7 @@ static void rxstate(struct musb *musb, struct musb_request *req) len, fifo_count, musb_ep->packet_sz); - fifo_count = min(len, fifo_count); + fifo_count = min_t(unsigned, len, fifo_count); #ifdef CONFIG_USB_TUSB_OMAP_DMA if (tusb_dma_omap() && musb_ep->dma) { diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c index a035ceccf950..6dbbd0786a6a 100644 --- a/drivers/usb/musb/musb_host.c +++ b/drivers/usb/musb/musb_host.c @@ -335,16 +335,11 @@ musb_save_toggle(struct musb_hw_ep *ep, int is_in, struct urb *urb) static struct musb_qh * musb_giveback(struct musb_qh *qh, struct urb *urb, int status) { - int is_in; struct musb_hw_ep *ep = qh->hw_ep; struct musb *musb = ep->musb; + int is_in = usb_pipein(urb->pipe); int ready = qh->is_ready; - if (ep->is_shared_fifo) - is_in = 1; - else - is_in = usb_pipein(urb->pipe); - /* save toggle eagerly, for paranoia */ switch (qh->type) { case USB_ENDPOINT_XFER_BULK: @@ -432,7 +427,7 @@ musb_advance_schedule(struct musb *musb, struct urb *urb, else qh = musb_giveback(qh, urb, urb->status); - if (qh && qh->is_ready && !list_empty(&qh->hep->urb_list)) { + if (qh != NULL && qh->is_ready) { DBG(4, "... next ep%d %cX urb %p\n", hw_ep->epnum, is_in ? 'R' : 'T', next_urb(qh)); @@ -942,8 +937,8 @@ static bool musb_h_ep0_continue(struct musb *musb, u16 len, struct urb *urb) switch (musb->ep0_stage) { case MUSB_EP0_IN: fifo_dest = urb->transfer_buffer + urb->actual_length; - fifo_count = min(len, ((u16) (urb->transfer_buffer_length - - urb->actual_length))); + fifo_count = min_t(size_t, len, urb->transfer_buffer_length - + urb->actual_length); if (fifo_count < len) urb->status = -EOVERFLOW; @@ -976,10 +971,9 @@ static bool musb_h_ep0_continue(struct musb *musb, u16 len, struct urb *urb) } /* FALLTHROUGH */ case MUSB_EP0_OUT: - fifo_count = min(qh->maxpacket, ((u16) - (urb->transfer_buffer_length - - urb->actual_length))); - + fifo_count = min_t(size_t, qh->maxpacket, + urb->transfer_buffer_length - + urb->actual_length); if (fifo_count) { fifo_dest = (u8 *) (urb->transfer_buffer + urb->actual_length); @@ -1161,7 +1155,8 @@ void musb_host_tx(struct musb *musb, u8 epnum) struct urb *urb; struct musb_hw_ep *hw_ep = musb->endpoints + epnum; void __iomem *epio = hw_ep->regs; - struct musb_qh *qh = hw_ep->out_qh; + struct musb_qh *qh = hw_ep->is_shared_fifo ? hw_ep->in_qh + : hw_ep->out_qh; u32 status = 0; void __iomem *mbase = musb->mregs; struct dma_channel *dma; @@ -1308,7 +1303,8 @@ void musb_host_tx(struct musb *musb, u8 epnum) * packets before updating TXCSR ... other docs disagree ... */ /* PIO: start next packet in this URB */ - wLength = min(qh->maxpacket, (u16) wLength); + if (wLength > qh->maxpacket) + wLength = qh->maxpacket; musb_write_fifo(hw_ep, wLength, buf); qh->segsize = wLength; @@ -1867,19 +1863,21 @@ static int musb_urb_enqueue( } qh->type_reg = type_reg; - /* precompute rxinterval/txinterval register */ - interval = min((u8)16, epd->bInterval); /* log encoding */ + /* Precompute RXINTERVAL/TXINTERVAL register */ switch (qh->type) { case USB_ENDPOINT_XFER_INT: - /* fullspeed uses linear encoding */ - if (USB_SPEED_FULL == urb->dev->speed) { - interval = epd->bInterval; - if (!interval) - interval = 1; + /* + * Full/low speeds use the linear encoding, + * high speed uses the logarithmic encoding. + */ + if (urb->dev->speed <= USB_SPEED_FULL) { + interval = max_t(u8, epd->bInterval, 1); + break; } /* FALLTHROUGH */ case USB_ENDPOINT_XFER_ISOC: - /* iso always uses log encoding */ + /* ISO always uses logarithmic encoding */ + interval = min_t(u8, epd->bInterval, 16); break; default: /* REVISIT we actually want to use NAK limits, hinting to the @@ -2037,9 +2035,9 @@ static int musb_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) goto done; /* Any URB not actively programmed into endpoint hardware can be - * immediately given back. Such an URB must be at the head of its + * immediately given back; that's any URB not at the head of an * endpoint queue, unless someday we get real DMA queues. And even - * then, it might not be known to the hardware... + * if it's at the head, it might not be known to the hardware... * * Otherwise abort current transfer, pending dma, etc.; urb->status * has already been updated. This is a synchronous abort; it'd be @@ -2078,6 +2076,15 @@ static int musb_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) qh->is_ready = 0; __musb_giveback(musb, urb, 0); qh->is_ready = ready; + + /* If nothing else (usually musb_giveback) is using it + * and its URB list has emptied, recycle this qh. + */ + if (ready && list_empty(&qh->hep->urb_list)) { + qh->hep->hcpriv = NULL; + list_del(&qh->ring); + kfree(qh); + } } else ret = musb_cleanup_urb(urb, qh, urb->pipe & USB_DIR_IN); done: @@ -2093,15 +2100,16 @@ musb_h_disable(struct usb_hcd *hcd, struct usb_host_endpoint *hep) unsigned long flags; struct musb *musb = hcd_to_musb(hcd); u8 is_in = epnum & USB_DIR_IN; - struct musb_qh *qh = hep->hcpriv; - struct urb *urb, *tmp; + struct musb_qh *qh; + struct urb *urb; struct list_head *sched; - if (!qh) - return; - spin_lock_irqsave(&musb->lock, flags); + qh = hep->hcpriv; + if (qh == NULL) + goto exit; + switch (qh->type) { case USB_ENDPOINT_XFER_CONTROL: sched = &musb->control; @@ -2135,13 +2143,28 @@ musb_h_disable(struct usb_hcd *hcd, struct usb_host_endpoint *hep) /* cleanup */ musb_cleanup_urb(urb, qh, urb->pipe & USB_DIR_IN); - } else - urb = NULL; - /* then just nuke all the others */ - list_for_each_entry_safe_from(urb, tmp, &hep->urb_list, urb_list) - musb_giveback(qh, urb, -ESHUTDOWN); + /* Then nuke all the others ... and advance the + * queue on hw_ep (e.g. bulk ring) when we're done. + */ + while (!list_empty(&hep->urb_list)) { + urb = next_urb(qh); + urb->status = -ESHUTDOWN; + musb_advance_schedule(musb, urb, qh->hw_ep, is_in); + } + } else { + /* Just empty the queue; the hardware is busy with + * other transfers, and since !qh->is_ready nothing + * will activate any of these as it advances. + */ + while (!list_empty(&hep->urb_list)) + __musb_giveback(musb, next_urb(qh), -ESHUTDOWN); + hep->hcpriv = NULL; + list_del(&qh->ring); + kfree(qh); + } +exit: spin_unlock_irqrestore(&musb->lock, flags); } diff --git a/drivers/usb/serial/cp2101.c b/drivers/usb/serial/cp2101.c index 027f4b7dde86..9b4082b58c5b 100644 --- a/drivers/usb/serial/cp2101.c +++ b/drivers/usb/serial/cp2101.c @@ -79,6 +79,7 @@ static struct usb_device_id id_table [] = { { USB_DEVICE(0x10C4, 0x814A) }, /* West Mountain Radio RIGblaster P&P */ { USB_DEVICE(0x10C4, 0x814B) }, /* West Mountain Radio RIGtalk */ { USB_DEVICE(0x10C4, 0x815E) }, /* Helicomm IP-Link 1220-DVM */ + { USB_DEVICE(0x10C4, 0x819F) }, /* MJS USB Toslink Switcher */ { USB_DEVICE(0x10C4, 0x81A6) }, /* ThinkOptics WavIt */ { USB_DEVICE(0x10C4, 0x81AC) }, /* MSD Dash Hawk */ { USB_DEVICE(0x10C4, 0x81C8) }, /* Lipowsky Industrie Elektronik GmbH, Baby-JTAG */ diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index f92f4d773374..ae84c326a540 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -663,6 +663,11 @@ static struct usb_device_id id_table_combined [] = { { USB_DEVICE(ALTI2_VID, ALTI2_N3_PID) }, { USB_DEVICE(FTDI_VID, DIEBOLD_BCS_SE923_PID) }, { USB_DEVICE(FTDI_VID, FTDI_NDI_HUC_PID) }, + { USB_DEVICE(ATMEL_VID, STK541_PID) }, + { USB_DEVICE(DE_VID, STB_PID) }, + { USB_DEVICE(DE_VID, WHT_PID) }, + { USB_DEVICE(ADI_VID, ADI_GNICE_PID), + .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, { }, /* Optional parameter entry */ { } /* Terminating entry */ }; diff --git a/drivers/usb/serial/ftdi_sio.h b/drivers/usb/serial/ftdi_sio.h index e300c840f8ca..daaf63db0b50 100644 --- a/drivers/usb/serial/ftdi_sio.h +++ b/drivers/usb/serial/ftdi_sio.h @@ -893,6 +893,26 @@ #define DIEBOLD_BCS_SE923_PID 0xfb99 /* + * Atmel STK541 + */ +#define ATMEL_VID 0x03eb /* Vendor ID */ +#define STK541_PID 0x2109 /* Zigbee Controller */ + +/* + * Dresden Elektronic Sensor Terminal Board + */ +#define DE_VID 0x1cf1 /* Vendor ID */ +#define STB_PID 0x0001 /* Sensor Terminal Board */ +#define WHT_PID 0x0004 /* Wireless Handheld Terminal */ + +/* + * Blackfin gnICE JTAG + * http://docs.blackfin.uclinux.org/doku.php?id=hw:jtag:gnice + */ +#define ADI_VID 0x0456 +#define ADI_GNICE_PID 0xF000 + +/* * BmRequestType: 1100 0000b * bRequest: FTDI_E2_READ * wValue: 0 diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index bfd0b68ceccd..61ebddc48497 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -89,6 +89,7 @@ static int option_send_setup(struct tty_struct *tty, struct usb_serial_port *po #define OPTION_PRODUCT_ETNA_MODEM_GT 0x7041 #define OPTION_PRODUCT_ETNA_MODEM_EX 0x7061 #define OPTION_PRODUCT_ETNA_KOI_MODEM 0x7100 +#define OPTION_PRODUCT_GTM380_MODEM 0x7201 #define HUAWEI_VENDOR_ID 0x12D1 #define HUAWEI_PRODUCT_E600 0x1001 @@ -197,6 +198,7 @@ static int option_send_setup(struct tty_struct *tty, struct usb_serial_port *po /* OVATION PRODUCTS */ #define NOVATELWIRELESS_PRODUCT_MC727 0x4100 #define NOVATELWIRELESS_PRODUCT_MC950D 0x4400 +#define NOVATELWIRELESS_PRODUCT_U727 0x5010 /* FUTURE NOVATEL PRODUCTS */ #define NOVATELWIRELESS_PRODUCT_EVDO_FULLSPEED 0X6000 @@ -288,13 +290,13 @@ static int option_send_setup(struct tty_struct *tty, struct usb_serial_port *po /* ZTE PRODUCTS */ #define ZTE_VENDOR_ID 0x19d2 +#define ZTE_PRODUCT_MF622 0x0001 #define ZTE_PRODUCT_MF628 0x0015 #define ZTE_PRODUCT_MF626 0x0031 #define ZTE_PRODUCT_CDMA_TECH 0xfffe -/* Ericsson products */ -#define ERICSSON_VENDOR_ID 0x0bdb -#define ERICSSON_PRODUCT_F3507G 0x1900 +#define BENQ_VENDOR_ID 0x04a5 +#define BENQ_PRODUCT_H10 0x4068 static struct usb_device_id option_ids[] = { { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) }, @@ -321,6 +323,7 @@ static struct usb_device_id option_ids[] = { { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_GT) }, { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_EX) }, { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_KOI_MODEM) }, + { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_GTM380_MODEM) }, { USB_DEVICE(QUANTA_VENDOR_ID, QUANTA_PRODUCT_Q101) }, { USB_DEVICE(QUANTA_VENDOR_ID, QUANTA_PRODUCT_Q111) }, { USB_DEVICE(QUANTA_VENDOR_ID, QUANTA_PRODUCT_GLX) }, @@ -411,6 +414,7 @@ static struct usb_device_id option_ids[] = { { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EU870D) }, /* Novatel EU850D/EU860D/EU870D */ { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC950D) }, /* Novatel MC930D/MC950D */ { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC727) }, /* Novatel MC727/U727/USB727 */ + { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U727) }, /* Novatel MC727/U727/USB727 */ { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_FULLSPEED) }, /* Novatel EVDO product */ { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_FULLSPEED) }, /* Novatel HSPA product */ { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_EMBEDDED_FULLSPEED) }, /* Novatel EVDO Embedded product */ @@ -438,7 +442,6 @@ static struct usb_device_id option_ids[] = { { USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5520_MINICARD_CINGULAR) }, /* Dell Wireless HSDPA 5520 == Novatel Expedite EU860D */ { USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5520_MINICARD_GENERIC_L) }, /* Dell Wireless HSDPA 5520 */ { USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5520_MINICARD_GENERIC_I) }, /* Dell Wireless 5520 Voda I Mobile Broadband (3G HSDPA) Minicard */ - { USB_DEVICE(DELL_VENDOR_ID, 0x8147) }, /* Dell Wireless 5530 Mobile Broadband (3G HSPA) Mini-Card */ { USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5730_MINICARD_SPRINT) }, /* Dell Wireless 5730 Mobile Broadband EVDO/HSPA Mini-Card */ { USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5730_MINICARD_TELUS) }, /* Dell Wireless 5730 Mobile Broadband EVDO/HSPA Mini-Card */ { USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5730_MINICARD_VZW) }, /* Dell Wireless 5730 Mobile Broadband EVDO/HSPA Mini-Card */ @@ -506,10 +509,12 @@ static struct usb_device_id option_ids[] = { { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6613)}, /* Onda H600/ZTE MF330 */ { USB_DEVICE(MAXON_VENDOR_ID, 0x6280) }, /* BP3-USB & BP3-EXT HSDPA */ { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_UC864E) }, + { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_MF622) }, { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_MF626) }, { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_MF628) }, { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_CDMA_TECH) }, - { USB_DEVICE(ERICSSON_VENDOR_ID, ERICSSON_PRODUCT_F3507G) }, + { USB_DEVICE(BENQ_VENDOR_ID, BENQ_PRODUCT_H10) }, + { USB_DEVICE(0x1da5, 0x4515) }, /* BenQ H20 */ { } /* Terminating entry */ }; MODULE_DEVICE_TABLE(usb, option_ids); diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h index 50dc33a6065b..cfde74a6faa3 100644 --- a/drivers/usb/storage/unusual_devs.h +++ b/drivers/usb/storage/unusual_devs.h @@ -226,7 +226,7 @@ UNUSUAL_DEV( 0x0421, 0x047c, 0x0370, 0x0610, US_FL_MAX_SECTORS_64 ), /* Reported by Manuel Osdoba <manuel.osdoba@tu-ilmenau.de> */ -UNUSUAL_DEV( 0x0421, 0x0492, 0x0452, 0x0452, +UNUSUAL_DEV( 0x0421, 0x0492, 0x0452, 0x9999, "Nokia", "Nokia 6233", US_SC_DEVICE, US_PR_DEVICE, NULL, @@ -907,13 +907,13 @@ UNUSUAL_DEV( 0x05e3, 0x0701, 0x0000, 0xffff, "Genesys Logic", "USB to IDE Optical", US_SC_DEVICE, US_PR_DEVICE, NULL, - US_FL_GO_SLOW | US_FL_MAX_SECTORS_64 ), + US_FL_GO_SLOW | US_FL_MAX_SECTORS_64 | US_FL_IGNORE_RESIDUE ), UNUSUAL_DEV( 0x05e3, 0x0702, 0x0000, 0xffff, "Genesys Logic", "USB to IDE Disk", US_SC_DEVICE, US_PR_DEVICE, NULL, - US_FL_GO_SLOW | US_FL_MAX_SECTORS_64 ), + US_FL_GO_SLOW | US_FL_MAX_SECTORS_64 | US_FL_IGNORE_RESIDUE ), /* Reported by Ben Efros <ben@pc-doctor.com> */ UNUSUAL_DEV( 0x05e3, 0x0723, 0x9451, 0x9451, @@ -951,7 +951,9 @@ UNUSUAL_DEV( 0x066f, 0x8000, 0x0001, 0x0001, US_FL_FIX_CAPACITY ), /* Reported by Richard -=[]=- <micro_flyer@hotmail.com> */ -UNUSUAL_DEV( 0x067b, 0x2507, 0x0100, 0x0100, +/* Change to bcdDeviceMin (0x0100 to 0x0001) reported by + * Thomas Bartosik <tbartdev@gmx-topmail.de> */ +UNUSUAL_DEV( 0x067b, 0x2507, 0x0001, 0x0100, "Prolific Technology Inc.", "Mass Storage Device", US_SC_DEVICE, US_PR_DEVICE, NULL, @@ -1390,6 +1392,16 @@ UNUSUAL_DEV( 0x0af0, 0x7401, 0x0000, 0x0000, US_SC_DEVICE, US_PR_DEVICE, NULL, 0 ), +/* Reported by Jan Dumon <j.dumon@option.com> + * This device (wrongly) has a vendor-specific device descriptor. + * The entry is needed so usb-storage can bind to it's mass-storage + * interface as an interface driver */ +UNUSUAL_DEV( 0x0af0, 0x7501, 0x0000, 0x0000, + "Option", + "GI 0431 SD-Card", + US_SC_DEVICE, US_PR_DEVICE, NULL, + 0 ), + /* Reported by Ben Efros <ben@pc-doctor.com> */ UNUSUAL_DEV( 0x0bc2, 0x3010, 0x0000, 0x0000, "Seagate", diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c index 238a96aee3a1..613a5fc490d3 100644 --- a/drivers/usb/wusbcore/wa-xfer.c +++ b/drivers/usb/wusbcore/wa-xfer.c @@ -921,8 +921,10 @@ static void wa_urb_enqueue_b(struct wa_xfer *xfer) result = -ENODEV; /* FIXME: segmentation broken -- kills DWA */ mutex_lock(&wusbhc->mutex); /* get a WUSB dev */ - if (urb->dev == NULL) + if (urb->dev == NULL) { + mutex_unlock(&wusbhc->mutex); goto error_dev_gone; + } wusb_dev = __wusb_dev_get_by_usb_dev(wusbhc, urb->dev); if (wusb_dev == NULL) { mutex_unlock(&wusbhc->mutex); |