Commit 61df07cc authored by Christophe JAILLET's avatar Christophe JAILLET Committed by Sasha Levin

[media] vb2: Fix an off by one error in 'vb2_plane_vaddr'

[ Upstream commit 5ebb6dd3 ]

We should ensure that 'plane_no' is '< vb->num_planes' as done in
'vb2_plane_cookie' just a few lines below.

Fixes: e23ccc0a ("[media] v4l: add videobuf2 Video for Linux 2 driver framework")

Cc: stable@vger.kernel.org
Signed-off-by: default avatarChristophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: default avatarSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: default avatarSasha Levin <alexander.levin@verizon.com>
parent 6ea9210c
......@@ -1122,7 +1122,7 @@ EXPORT_SYMBOL_GPL(vb2_create_bufs);
*/
void *vb2_plane_vaddr(struct vb2_buffer *vb, unsigned int plane_no)
{
if (plane_no > vb->num_planes || !vb->planes[plane_no].mem_priv)
if (plane_no >= vb->num_planes || !vb->planes[plane_no].mem_priv)
return NULL;
return call_ptr_memop(vb, vaddr, vb->planes[plane_no].mem_priv);
......
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