[PATCH 04/13] USB: sl811: fix memory leak with using debugfs_lookup()

[Greg Kroah-Hartman]

When calling debugfs_lookup() the result must have dput() called on it,
otherwise the memory will leak over time.  To make things simpler, just
call debugfs_lookup_and_remove() instead which handles all of the logic
at once.

Cc: Vincent Mailhol <mailhol.vincent@xxxxxxxxxx>
Cc: linux-usb@xxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/usb/host/sl811-hcd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/host/sl811-hcd.c b/drivers/usb/host/sl811-hcd.c
index d206bd95c7bb..b8b90eec9107 100644
--- a/drivers/usb/host/sl811-hcd.c
+++ b/drivers/usb/host/sl811-hcd.c
@@ -1501,7 +1501,7 @@ static void create_debug_file(struct sl811 *sl811)
 
 static void remove_debug_file(struct sl811 *sl811)
 {
-	debugfs_remove(debugfs_lookup("sl811h", usb_debug_root));
+	debugfs_lookup_and_remove("sl811h", usb_debug_root);
 }
 
 /*-------------------------------------------------------------------------*/
-- 
2.39.1