From: Colin Ian King <colin.k...@canonical.com>
Writes to elements in the kmb->plane_status array in function
kmb_plane_atomic_disable are overrunning the array when plane_id is
more than 1 because currently the array is KMB_MAX_PLANES elements
in size and this is currently #defined as 1. Fix this by defining
KMB_MAX_PLANES to 4.
Addresses-Coverity: ("Out-of-bounds write")
Fixes: 7f7b96a8a0a1 ("drm/kmb: Add support for KeemBay Display")
Signed-off-by: Colin Ian King <colin.k...@canonical.com>
---
drivers/gpu/drm/kmb/kmb_plane.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/kmb/kmb_plane.h b/drivers/gpu/drm/kmb/kmb_plane.h
index 486490f7a3ec..6f43a7ae3de6 100644
--- a/drivers/gpu/drm/kmb/kmb_plane.h
+++ b/drivers/gpu/drm/kmb/kmb_plane.h
@@ -43,7 +43,7 @@ enum layer_id {
/* KMB_MAX_PLANES */
};
-#define KMB_MAX_PLANES 1
+#define KMB_MAX_PLANES 4
enum sub_plane_id {
Y_PLANE,
--
2.28.0
