[PATCH] drm: panel-lvds: Potential Oops in probe error handling

[Dan Carpenter]

The "lvds->backlight" pointer could be NULl if of_parse_phandle()
returns NULL.

Fixes: 7c9dff5bd643 ("drm: panels: Add LVDS panel driver")
Signed-off-by: Dan Carpenter <dan.carpenter at oracle.com>
---
 drivers/gpu/drm/panel/panel-lvds.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/panel/panel-lvds.c b/drivers/gpu/drm/panel/panel-lvds.c
index ad47cc95459e..3b4eb959e994 100644
--- a/drivers/gpu/drm/panel/panel-lvds.c
+++ b/drivers/gpu/drm/panel/panel-lvds.c
@@ -272,7 +272,8 @@ static int panel_lvds_probe(struct platform_device *pdev)
 	return 0;
 
 error:
-	put_device(&lvds->backlight->dev);
+	if (lvds->backlight)
+		put_device(&lvds->backlight->dev);
 	return ret;
 }
 
-- 
2.20.1