fbdev: omapfb: off by one in omapfb_register_client()

[ Upstream commit 5ec1ec3 ] The omapfb_register_client[] array has OMAPFB_PLANE_NUM elements so the > should be >= or we are one element beyond the end of the array. Fixes: 8b08cf2 ("OMAP: add TI OMAP framebuffer driver") Signed-off-by: Dan Carpenter <[email protected]> Cc: Imre Deak <[email protected]> Signed-off-by: Bartlomiej Zolnierkiewicz <[email protected]> Signed-off-by: Sasha Levin <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
frank-w · Sep 26, 2018 · 3bc6deb · 3bc6deb
1 parent 3340ab9
commit 3bc6deb
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/drivers/video/fbdev/omap/omapfb_main.c b/drivers/video/fbdev/omap/omapfb_main.c
@@ -958,7 +958,7 @@ int omapfb_register_client(struct omapfb_notifier_block *omapfb_nb,
 {
 	int r;
 
-	if ((unsigned)omapfb_nb->plane_idx > OMAPFB_PLANE_NUM)
+	if ((unsigned)omapfb_nb->plane_idx >= OMAPFB_PLANE_NUM)
 		return -EINVAL;
 
 	if (!notifier_inited) {