drm/kirin: Checking for IS_ERR() instead of NULL

The of_graph_get_remote_node() function doesn't return error pointers,
it returns NULL on error so I've updated the check.

Fixes: 86418f90a4c1 ("drm: convert drivers to use of_graph_get_remote_node")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20171005125751.jvtjms62vbtxuvak@mwanda

diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c
index c19ab4f91ae7a79b1612e9ad62bdd0a7ecea37cc..ddb0403f1975e690a415cdbeb3fa12aded8b5744 100644 (file)
--- a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c
+++ b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c
@@ -237,8 +237,8 @@ static int kirin_drm_platform_probe(struct platform_device *pdev)
        }
 
        remote = of_graph_get_remote_node(np, 0, 0);
-       if (IS_ERR(remote))
-               return PTR_ERR(remote);
+       if (!remote)
+               return -ENODEV;
 
        drm_of_component_match_add(dev, &match, compare_of, remote);
        of_node_put(remote);