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media: use struct_size() helper

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Prefer struct_size() over open-coded versions of idiom:

sizeof(struct-with-flex-array) + sizeof(typeof-flex-array-elements) * count

where count is the max number of items the flexible array is supposed to
contain.

Signed-off-by: Yu Liao <liaoyu15@huawei.com>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
This commit is contained in:
Yu Liao 2023-08-16 14:31:43 +08:00 committed by Hans Verkuil
parent 6c4ef82846
commit ba85aea885
1 changed files with 1 additions and 1 deletions
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2
drivers/media/common/videobuf2/frame_vector.c
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@ -159,7 +159,7 @@ EXPORT_SYMBOL(frame_vector_to_pfns);
struct frame_vector *frame_vector_create(unsigned int nr_frames)
{
struct frame_vector *vec;
int size = sizeof(struct frame_vector) + sizeof(void *) * nr_frames;
int size = struct_size(vec, ptrs, nr_frames);
if (WARN_ON_ONCE(nr_frames == 0))
return NULL;