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authorNick Piggin <npiggin@suse.de>2006-12-06 20:31:53 -0800
committerLinus Torvalds <torvalds@woody.osdl.org>2006-12-07 08:39:20 -0800
commitcd54e7e54318d333227b13186f9a464bf1f68d27 (patch)
tree75bf795ab6c3805f318b2d3040321ba31ef35c6a /sound/core
parentf2a2a7108aa0039ba7a5fe7a0d2ecef2219a7584 (diff)
downloadop-kernel-dev-cd54e7e54318d333227b13186f9a464bf1f68d27.zip
op-kernel-dev-cd54e7e54318d333227b13186f9a464bf1f68d27.tar.gz
[PATCH] mm: incorrect VM_FAULT_OOM returns from drivers
Some drivers are returning OOM when it is not in response to a memory shortage. Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Dave Airlie <airlied@linux.ie> Cc: Jaroslav Kysela <perex@suse.cz> Cc: Takashi Iwai <tiwai@suse.de> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'sound/core')
-rw-r--r--sound/core/pcm_native.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index 66e24b5..6ea67b1 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -3027,7 +3027,7 @@ static struct page * snd_pcm_mmap_status_nopage(struct vm_area_struct *area,
struct page * page;
if (substream == NULL)
- return NOPAGE_OOM;
+ return NOPAGE_SIGBUS;
runtime = substream->runtime;
page = virt_to_page(runtime->status);
get_page(page);
@@ -3070,7 +3070,7 @@ static struct page * snd_pcm_mmap_control_nopage(struct vm_area_struct *area,
struct page * page;
if (substream == NULL)
- return NOPAGE_OOM;
+ return NOPAGE_SIGBUS;
runtime = substream->runtime;
page = virt_to_page(runtime->control);
get_page(page);
@@ -3131,18 +3131,18 @@ static struct page *snd_pcm_mmap_data_nopage(struct vm_area_struct *area,
size_t dma_bytes;
if (substream == NULL)
- return NOPAGE_OOM;
+ return NOPAGE_SIGBUS;
runtime = substream->runtime;
offset = area->vm_pgoff << PAGE_SHIFT;
offset += address - area->vm_start;
- snd_assert((offset % PAGE_SIZE) == 0, return NOPAGE_OOM);
+ snd_assert((offset % PAGE_SIZE) == 0, return NOPAGE_SIGBUS);
dma_bytes = PAGE_ALIGN(runtime->dma_bytes);
if (offset > dma_bytes - PAGE_SIZE)
return NOPAGE_SIGBUS;
if (substream->ops->page) {
page = substream->ops->page(substream, offset);
if (! page)
- return NOPAGE_OOM;
+ return NOPAGE_OOM; /* XXX: is this really due to OOM? */
} else {
vaddr = runtime->dma_area + offset;
page = virt_to_page(vaddr);
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