Commit 320e421e authored by Dan Carpenter's avatar Dan Carpenter Committed by Linus Walleij
Browse files

drm: of: always initialize panel in drm_of_find_panel_or_bridge() 



The callers expect "panel" to be initialized, but that isn't true if we
return -ENODEV.  It causes bugs like:

    drivers/gpu/drm/tve200/tve200_drv.c:83 tve200_modeset_init()
    error: uninitialized symbol 'panel'.

Signed-off-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20170925103038.lvr5msjvekwczctn@mwanda
parent 44390ef5

drivers/gpu/drm/drm_of.c

+2 −0
Original line number Diff line number Diff line
@@ -233,6 +233,8 @@ int drm_of_find_panel_or_bridge(const struct device_node *np, 


	if (!panel && !bridge)

		return -EINVAL;

	if (panel)

		*panel = NULL;



	remote = of_graph_get_remote_node(np, port, endpoint);

	if (!remote)