[PATCH v1] drivers:mpt3saa:Fix the NULL vs IS_ERR() bug for debugfs_create_dir()

[Yang Ruibin]

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

Signed-off-by: Yang Ruibin <11162571@xxxxxxxx>
---
 drivers/scsi/mpt3sas/mpt3sas_debugfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/mpt3sas/mpt3sas_debugfs.c b/drivers/scsi/mpt3sas/mpt3sas_debugfs.c
index a6ab1db81167..306616bdea83 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_debugfs.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_debugfs.c
@@ -99,7 +99,7 @@ static const struct file_operations mpt3sas_debugfs_iocdump_fops = {
 void mpt3sas_init_debugfs(void)
 {
 	mpt3sas_debugfs_root = debugfs_create_dir("mpt3sas", NULL);
-	if (!mpt3sas_debugfs_root)
+	if (IS_ERR(mpt3sas_debugfs_root))
 		pr_info("mpt3sas: Cannot create debugfs root\n");
 }
 
-- 
2.34.1