From 14302ab0d6550ef0ea48f213b0ab13c9249de185 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Wed, 22 Mar 2023 12:07:10 +0300 Subject: [PATCH] drm/panel: magnachip: Prevent error pointer dereference in probe Don't dereference "db->dsi_dev" when it is an error pointer. Fixes: 249a4f5e663c ("drm/panel: Add Magnachip D53E6EA8966 Panel Driver") Signed-off-by: Dan Carpenter Signed-off-by: Linus Walleij Link: https://patchwork.freedesktop.org/patch/msgid/de0273a8-8910-4ac4-b4ed-f7691c4d2ca6@kili.mountain --- drivers/gpu/drm/panel/panel-magnachip-d53e6ea8966.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/panel/panel-magnachip-d53e6ea8966.c b/drivers/gpu/drm/panel/panel-magnachip-d53e6ea8966.c index 8c362c40227f..26d358b9b85a 100644 --- a/drivers/gpu/drm/panel/panel-magnachip-d53e6ea8966.c +++ b/drivers/gpu/drm/panel/panel-magnachip-d53e6ea8966.c @@ -418,7 +418,7 @@ static int d53e6ea8966_probe(struct spi_device *spi) if (IS_ERR(db->dsi_dev)) { dev_err(dev, "failed to register dsi device: %ld\n", PTR_ERR(db->dsi_dev)); - ret = PTR_ERR(db->dsi_dev); + return PTR_ERR(db->dsi_dev); } db->dsi_dev->lanes = 2;