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[media] s5p-fimc: Fix wrong buffer size in queue_setup

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Avoid dereferencing of NULL f->fmt. Correct size of the allocated
buffer in case the crop rectangle is smaller than the bounds
rectangle (configured with S_FMT). Also remove redundant check
for *num_buffer == 0 as this case is handled in videobuf2.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Sylwester Nawrocki 2011-05-23 09:15:05 -03:00 committed by Mauro Carvalho Chehab
parent 3495dcefeb
commit a629f86b4a
1 changed files with 4 additions and 8 deletions
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12
drivers/media/video/s5p-fimc/fimc-core.c
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@ -704,22 +704,18 @@ static int fimc_queue_setup(struct vb2_queue *vq, unsigned int *num_buffers,
f = ctx_get_frame(ctx, vq->type);
if (IS_ERR(f))
return PTR_ERR(f);
/*
* Return number of non-contigous planes (plane buffers)
* depending on the configured color format.
*/
if (f->fmt)
*num_planes = f->fmt->memplanes;
if (!f->fmt)
return -EINVAL;
*num_planes = f->fmt->memplanes;
for (i = 0; i < f->fmt->memplanes; i++) {
sizes[i] = (f->width * f->height * f->fmt->depth[i]) >> 3;
sizes[i] = (f->f_width * f->f_height * f->fmt->depth[i]) / 8;
allocators[i] = ctx->fimc_dev->alloc_ctx;
}
if (*num_buffers == 0)
*num_buffers = 1;
return 0;
}