From: Colin Ian King colin.king@canonical.com
[ Upstream commit 11e0e167d071a28288a7a0a211d48c571d19b56f ]
Currently if the allocation of new_buf fails then a null pointer dereference occurs when assiging new_buf->vb. Avoid this by returning early on a memory allocation failure as there is not much more can be done at this point.
Addresses-Coverity: ("Dereference null return")
Fixes: 3e7f51bd9607 ("media: meson: add v4l2 m2m video decoder driver") Signed-off-by: Colin Ian King colin.king@canonical.com Reviewed-by: Kevin Hilman khilman@baylibre.com Signed-off-by: Hans Verkuil hverkuil-cisco@xs4all.nl Signed-off-by: Mauro Carvalho Chehab mchehab+huawei@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/staging/media/meson/vdec/vdec.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/staging/media/meson/vdec/vdec.c b/drivers/staging/media/meson/vdec/vdec.c index 0a1a04fd5d13d..8dd1396909d7e 100644 --- a/drivers/staging/media/meson/vdec/vdec.c +++ b/drivers/staging/media/meson/vdec/vdec.c @@ -133,6 +133,8 @@ vdec_queue_recycle(struct amvdec_session *sess, struct vb2_buffer *vb) struct amvdec_buffer *new_buf;
new_buf = kmalloc(sizeof(*new_buf), GFP_KERNEL); + if (!new_buf) + return; new_buf->vb = vb;
mutex_lock(&sess->bufs_recycle_lock);