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Diffstat (limited to 'sound/usb/usx2y/usx2yhwdeppcm.c')
-rw-r--r--sound/usb/usx2y/usx2yhwdeppcm.c20
1 files changed, 7 insertions, 13 deletions
diff --git a/sound/usb/usx2y/usx2yhwdeppcm.c b/sound/usb/usx2y/usx2yhwdeppcm.c
index a5e7bcd7ca2e..800b5cecfc80 100644
--- a/sound/usb/usx2y/usx2yhwdeppcm.c
+++ b/sound/usb/usx2y/usx2yhwdeppcm.c
@@ -683,30 +683,24 @@ static void snd_usX2Y_hwdep_pcm_vm_close(struct vm_area_struct *area)
683} 683}
684 684
685 685
686static struct page * snd_usX2Y_hwdep_pcm_vm_nopage(struct vm_area_struct *area, unsigned long address, int *type) 686static int snd_usX2Y_hwdep_pcm_vm_fault(struct vm_area_struct *area,
687 struct vm_fault *vmf)
687{ 688{
688 unsigned long offset; 689 unsigned long offset;
689 struct page *page;
690 void *vaddr; 690 void *vaddr;
691 691
692 offset = area->vm_pgoff << PAGE_SHIFT; 692 offset = vmf->pgoff << PAGE_SHIFT;
693 offset += address - area->vm_start;
694 snd_assert((offset % PAGE_SIZE) == 0, return NOPAGE_OOM);
695 vaddr = (char*)((struct usX2Ydev *)area->vm_private_data)->hwdep_pcm_shm + offset; 693 vaddr = (char*)((struct usX2Ydev *)area->vm_private_data)->hwdep_pcm_shm + offset;
696 page = virt_to_page(vaddr); 694 vmf->page = virt_to_page(vaddr);
697 get_page(page); 695 get_page(vmf->page);
698 696 return 0;
699 if (type)
700 *type = VM_FAULT_MINOR;
701
702 return page;
703} 697}
704 698
705 699
706static struct vm_operations_struct snd_usX2Y_hwdep_pcm_vm_ops = { 700static struct vm_operations_struct snd_usX2Y_hwdep_pcm_vm_ops = {
707 .open = snd_usX2Y_hwdep_pcm_vm_open, 701 .open = snd_usX2Y_hwdep_pcm_vm_open,
708 .close = snd_usX2Y_hwdep_pcm_vm_close, 702 .close = snd_usX2Y_hwdep_pcm_vm_close,
709 .nopage = snd_usX2Y_hwdep_pcm_vm_nopage, 703 .fault = snd_usX2Y_hwdep_pcm_vm_fault,
710}; 704};
711 705
712 706