[Bluetooth] Handle return values from driver core functions

Some return values of the driver core register and create functions
are not handled and so might cause unexpected problems.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
index d56f60b392ac..66fc621a077c 100644
--- a/net/bluetooth/l2cap.c
+++ b/net/bluetooth/l2cap.c
@@ -2216,7 +2216,8 @@ static int __init l2cap_init(void)
                 goto error;
         }
 
-        class_create_file(bt_class, &class_attr_l2cap);
+        if (class_create_file(bt_class, &class_attr_l2cap) < 0)
+                BT_ERR("Failed to create L2CAP info file");
 
         BT_INFO("L2CAP ver %s", VERSION);
         BT_INFO("L2CAP socket layer initialized");