diff options
| author | Sachin Kamat <sachin.kamat@linaro.org> | 2012-05-21 13:51:19 +0530 |
|---|---|---|
| committer | Tushar Behera <tushar.behera@linaro.org> | 2012-05-21 15:25:00 +0530 |
| commit | c579b4d6b17a6fb1b15cc681268db54e5b73afaf (patch) | |
| tree | 5b7c2b916b9e6de71e9bb5f10a501a6ce80c055b | |
| parent | 4dff6d334b4825ced462f18e19495b650cdea29a (diff) | |
VB2-DC: Fix Null pointer related kernel boot crashtracking-umm_fixes-3.4-2012.05-1tracking-umm_fixes-3.4-2012.05-0
vma->vm_mm should point to the proper mm structure. But the pointer is
NULL here. Explicitly setting it to current->mm to avoid kernel crash
during bootup.
Signed-off-by: Ritesh Kumar Solanki <r.solanki@samsung.com>
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
| -rw-r--r-- | drivers/media/video/videobuf2-dma-contig.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/media/video/videobuf2-dma-contig.c b/drivers/media/video/videobuf2-dma-contig.c index 266ae7d6df2b..57e643bb4ff7 100644 --- a/drivers/media/video/videobuf2-dma-contig.c +++ b/drivers/media/video/videobuf2-dma-contig.c @@ -273,6 +273,9 @@ static struct vm_area_struct *vb2_dc_get_user_vma( static int vb2_dc_get_user_pages(unsigned long start, struct page **pages, int n_pages, struct vm_area_struct *vma, int write) { + if (vma->vm_mm == NULL) + vma->vm_mm = current->mm; + if (vma_is_io(vma)) { unsigned int i; |