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| author |   Sakari Ailus <sakari.ailus@linux.intel.com> | 2018-12-12 07:40:48 -0500 |
|---|---|---|
| committer |   Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-05-23 10:18:19 -0400 |
| commit | b29ecab178b074be999afd5d6bf6e5b4c2bb782b (patch) | |
| tree | cbedf27675932b3ddb8fb907bb085edfb846a825 /drivers/media/common | |
| parent | media: videobuf2-dma-sg: Prevent size from overflowing (diff) | |
| download | wireguard-linux-b29ecab178b074be999afd5d6bf6e5b4c2bb782b.tar.xz wireguard-linux-b29ecab178b074be999afd5d6bf6e5b4c2bb782b.zip | |
media: videobuf2-core.h: Document the alloc memop size argument as page aligned
The size argument of the alloc memop, which allocates buffer memory, is
page aligned. Document it as such in the only caller as well as ops
documentation.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'drivers/media/common')
| -rw-r--r-- | drivers/media/common/videobuf2/videobuf2-core.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c index cfccee87909a..4489744fbbd9 100644 --- a/drivers/media/common/videobuf2/videobuf2-core.c +++ b/drivers/media/common/videobuf2/videobuf2-core.c @@ -205,6 +205,7 @@ static int __vb2_buf_mem_alloc(struct vb2_buffer *vb) * NOTE: mmapped areas should be page aligned */ for (plane = 0; plane < vb->num_planes; ++plane) { + /* Memops alloc requires size to be page aligned. */ unsigned long size = PAGE_ALIGN(vb->planes[plane].length); /* Did it wrap around? */ |