[PATCH] drm/panel: magnachip: Prevent error pointer dereference in probe

[Dan Carpenter]

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 <erro...@gmail.com>
---
 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;
-- 
2.39.1