drm: sti: Fix return value check in sti_drm_platform_probe()
In case of error, the function platform_device_register_resndata()
returns ERR_PTR() and never returns NULL. The NULL test in the return
value check should be replaced with IS_ERR().
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
diff --git a/drivers/gpu/drm/sti/sti_drm_drv.c b/drivers/gpu/drm/sti/sti_drm_drv.c
index a7cc249..223d93c 100644
--- a/drivers/gpu/drm/sti/sti_drm_drv.c
+++ b/drivers/gpu/drm/sti/sti_drm_drv.c
@@ -201,8 +201,8 @@
master = platform_device_register_resndata(dev,
DRIVER_NAME "__master", -1,
NULL, 0, NULL, 0);
- if (!master)
- return -EINVAL;
+ if (IS_ERR(master))
+ return PTR_ERR(master);
platform_set_drvdata(pdev, master);
return 0;