diff options
| author | Nick Piggin <npiggin@suse.de> | 2007-12-13 16:16:40 +0100 |
|---|---|---|
| committer | Jaroslav Kysela <perex@perex.cz> | 2008-01-31 17:29:32 +0100 |
| commit | eb415b8f6d1b259ea31b3093df958054380f7f8f (patch) | |
| tree | bade9785fdcc99b78e5db950e5779399f071b91a /sound/usb/usx2y/usX2Yhwdep.c | |
| parent | 3ad5afcd5fa91a00a9a19b9e39958acd9a3a25d7 (diff) | |
[ALSA] alsa: usx2y nopage
Convert alsa usx2y driver from nopage to fault.
Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Diffstat (limited to 'sound/usb/usx2y/usX2Yhwdep.c')
| -rw-r--r-- | sound/usb/usx2y/usX2Yhwdep.c | 23 |
1 files changed, 10 insertions, 13 deletions
diff --git a/sound/usb/usx2y/usX2Yhwdep.c b/sound/usb/usx2y/usX2Yhwdep.c index b76b3dd9df25..a1dca3441319 100644 --- a/sound/usb/usx2y/usX2Yhwdep.c +++ b/sound/usb/usx2y/usX2Yhwdep.c @@ -34,34 +34,31 @@ int usX2Y_hwdep_pcm_new(struct snd_card *card); -static struct page * snd_us428ctls_vm_nopage(struct vm_area_struct *area, unsigned long address, int *type) +static int snd_us428ctls_vm_fault(struct vm_area_struct *area, + struct vm_fault *vmf) { unsigned long offset; struct page * page; void *vaddr; - snd_printdd("ENTER, start %lXh, ofs %lXh, pgoff %ld, addr %lXh\n", + snd_printdd("ENTER, start %lXh, pgoff %ld\n", area->vm_start, - address - area->vm_start, - (address - area->vm_start) >> PAGE_SHIFT, - address); + vmf->pgoff); - offset = area->vm_pgoff << PAGE_SHIFT; - offset += address - area->vm_start; - snd_assert((offset % PAGE_SIZE) == 0, return NOPAGE_SIGBUS); + offset = vmf->pgoff << PAGE_SHIFT; vaddr = (char*)((struct usX2Ydev *)area->vm_private_data)->us428ctls_sharedmem + offset; page = virt_to_page(vaddr); get_page(page); - snd_printdd( "vaddr=%p made us428ctls_vm_nopage() return %p; offset=%lX\n", vaddr, page, offset); + vmf->page = page; - if (type) - *type = VM_FAULT_MINOR; + snd_printdd("vaddr=%p made us428ctls_vm_fault() page %p\n", + vaddr, page); - return page; + return 0; } static struct vm_operations_struct us428ctls_vm_ops = { - .nopage = snd_us428ctls_vm_nopage, + .fault = snd_us428ctls_vm_fault, }; static int snd_us428ctls_mmap(struct snd_hwdep * hw, struct file *filp, struct vm_area_struct *area) |