[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/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
index 220fee04e7f2..530cc41f3a22 100644
--- a/net/bluetooth/rfcomm/sock.c
+++ b/net/bluetooth/rfcomm/sock.c
@@ -944,7 +944,8 @@ int __init rfcomm_init_sockets(void)
         if (err < 0)
                 goto error;
 
-        class_create_file(bt_class, &class_attr_rfcomm);
+        if (class_create_file(bt_class, &class_attr_rfcomm) < 0)
+                BT_ERR("Failed to create RFCOMM info file");
 
         BT_INFO("RFCOMM socket layer initialized");