[PATCH v2] drivers:block:Use IS_ERR() to check debugfs_create_dir() return value

[Yang Ruibin]

The debugfs_create_dir() function returns error pointers.It
never returns NULL. So use IS_ERR() to check its return value.

Fixes: 011d82611172 ("RAS: Add a Corrected Errors Collector")
Signed-off-by: Yang Ruibin <11162571@xxxxxxxx>
---
 drivers/ras/cec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/ras/cec.c b/drivers/ras/cec.c
index e440b15fbabc..ebd4631b685b 100644
--- a/drivers/ras/cec.c
+++ b/drivers/ras/cec.c
@@ -489,7 +489,7 @@ static int __init create_debugfs_nodes(void)
 	}
 
 	d = debugfs_create_dir("cec", dfs);
-	if (!d) {
+	if (IS_ERR(d)) {
 		pr_warn("Error creating cec debugfs node!\n");
 		return -1;
 	}
-- 
2.34.1