[PATCH v1] drivers:mgb4: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/media/pci/mgb4/mgb4_vout.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/pci/mgb4/mgb4_vout.c b/drivers/media/pci/mgb4/mgb4_vout.c
index 998edcbd9723..348c8e01fcbe 100644
--- a/drivers/media/pci/mgb4/mgb4_vout.c
+++ b/drivers/media/pci/mgb4/mgb4_vout.c
@@ -683,7 +683,7 @@ static void debugfs_init(struct mgb4_vout_dev *voutdev)
 
 	voutdev->debugfs = debugfs_create_dir(voutdev->vdev.name,
 					      voutdev->mgbdev->debugfs);
-	if (!voutdev->debugfs)
+	if (IS_ERR(voutdev->debugfs))
 		return;
 
 	voutdev->regs[0].name = "CONFIG";
-- 
2.34.1