Commit 9cc25c4b authored by Ricardo Ribalda's avatar Ricardo Ribalda Committed by Mauro Carvalho Chehab
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media: videobuf2: Exit promptly if size = 0 



Exit as soon as possible if a driver wants to allocate a buffer of
size 0, and print a warning to help fixing the issue.

Signed-off-by: default avatarRicardo Ribalda <ribalda@chromium.org>
Signed-off-by: default avatarHans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+huawei@kernel.org>
parent a9e3863d

drivers/media/common/videobuf2/videobuf2-dma-sg.c

+1 −1
Original line number Diff line number Diff line
@@ -105,7 +105,7 @@ static void *vb2_dma_sg_alloc(struct device *dev, unsigned long dma_attrs, 
	int ret;

	int num_pages;



	if (WARN_ON(!dev))

	if (WARN_ON(!dev) || WARN_ON(!size))

		return ERR_PTR(-EINVAL);



	buf = kzalloc(sizeof *buf, GFP_KERNEL);