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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-15 12:49:56 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-15 12:49:56 -0800 |
| commit | 122804ecb59493fbb4d31b3ba9ac59faaf45276f (patch) | |
| tree | cff4d8a158c412e4a8d3abc8d91bb0eb52b01c9a /drivers/media/video/videobuf2-dma-sg.c | |
| parent | 16008d641670571ff4cd750b416c7caf2d89f467 (diff) | |
| parent | 126400033940afb658123517a2e80eb68259fbd7 (diff) | |
Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (655 commits)
[media] revert patch: HDIC HD29L2 DMB-TH USB2.0 reference design driver
mb86a20s: Add a few more register settings at the init seq
mb86a20s: Group registers into the same line
[media] [PATCH] don't reset the delivery system on DTV_CLEAR
[media] [BUG] it913x-fe fix typo error making SNR levels unstable
[media] cx23885: Query the CX25840 during enum_input for status
[media] cx25840: Add support for g_input_status
[media] rc-videomate-m1f.c Rename to match remote controler name
[media] drivers: media: au0828: Fix dependency for VIDEO_AU0828
[media] convert drivers/media/* to use module_platform_driver()
[media] drivers: video: cx231xx: Fix dependency for VIDEO_CX231XX_DVB
[media] Exynos4 JPEG codec v4l2 driver
[media] doc: v4l: selection: choose pixels as units for selection rectangles
[media] v4l: s5p-tv: mixer: fix setup of VP scaling
[media] v4l: s5p-tv: mixer: add support for selection API
[media] v4l: emulate old crop API using extended crop/compose API
[media] doc: v4l: add documentation for selection API
[media] doc: v4l: add binary images for selection API
[media] v4l: add support for selection api
[media] hd29l2: fix review findings
...
Diffstat (limited to 'drivers/media/video/videobuf2-dma-sg.c')
| -rw-r--r-- | drivers/media/video/videobuf2-dma-sg.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/media/video/videobuf2-dma-sg.c b/drivers/media/video/videobuf2-dma-sg.c index 3bad8b105fe..25c3b360e1a 100644 --- a/drivers/media/video/videobuf2-dma-sg.c +++ b/drivers/media/video/videobuf2-dma-sg.c @@ -140,7 +140,6 @@ static void *vb2_dma_sg_get_userptr(void *alloc_ctx, unsigned long vaddr, if (!buf->pages) goto userptr_fail_pages_array_alloc; - down_read(¤t->mm->mmap_sem); num_pages_from_user = get_user_pages(current, current->mm, vaddr & PAGE_MASK, buf->sg_desc.num_pages, @@ -148,7 +147,7 @@ static void *vb2_dma_sg_get_userptr(void *alloc_ctx, unsigned long vaddr, 1, /* force */ buf->pages, NULL); - up_read(¤t->mm->mmap_sem); + if (num_pages_from_user != buf->sg_desc.num_pages) goto userptr_fail_get_user_pages; |