diff options
Diffstat (limited to 'hw/usb/dev-storage.c')
| -rw-r--r-- | hw/usb/dev-storage.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/hw/usb/dev-storage.c b/hw/usb/dev-storage.c index a96c0b9e5e..e6652f9bcf 100644 --- a/hw/usb/dev-storage.c +++ b/hw/usb/dev-storage.c @@ -51,7 +51,6 @@ typedef struct { uint32_t scsi_len; uint8_t *scsi_buf; uint32_t data_len; - uint32_t residue; struct usb_msd_csw csw; SCSIRequest *req; SCSIBus bus; @@ -229,11 +228,10 @@ static void usb_msd_command_complete(SCSIRequest *req, uint32_t status, size_t r USBPacket *p = s->packet; DPRINTF("Command complete %d tag 0x%x\n", status, req->tag); - s->residue = s->data_len; s->csw.sig = cpu_to_le32(0x53425355); s->csw.tag = cpu_to_le32(req->tag); - s->csw.residue = cpu_to_le32(s->residue); + s->csw.residue = cpu_to_le32(s->data_len); s->csw.status = status != 0; if (s->packet) { @@ -378,7 +376,7 @@ static int usb_msd_handle_data(USBDevice *dev, USBPacket *p) } DPRINTF("Command tag 0x%x flags %08x len %d data %d\n", tag, cbw.flags, cbw.cmd_len, s->data_len); - s->residue = 0; + assert(le32_to_cpu(s->csw.residue) == 0); s->scsi_len = 0; s->req = scsi_req_new(s->scsi_dev, tag, 0, cbw.cmd, NULL); scsi_req_enqueue(s->req); @@ -397,7 +395,7 @@ static int usb_msd_handle_data(USBDevice *dev, USBPacket *p) if (s->scsi_len) { usb_msd_copy_data(s, p); } - if (s->residue) { + if (le32_to_cpu(s->csw.residue)) { int len = p->iov.size - p->result; if (len) { usb_packet_skip(p, len); @@ -458,7 +456,7 @@ static int usb_msd_handle_data(USBDevice *dev, USBPacket *p) if (s->scsi_len) { usb_msd_copy_data(s, p); } - if (s->residue) { + if (le32_to_cpu(s->csw.residue)) { int len = p->iov.size - p->result; if (len) { usb_packet_skip(p, len); |