[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/sco.c b/net/bluetooth/sco.c
index 7714a2ec3854..14b0f6930637 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -967,7 +967,8 @@ static int __init sco_init(void)
                 goto error;
         }
 
-        class_create_file(bt_class, &class_attr_sco);
+        if (class_create_file(bt_class, &class_attr_sco) < 0)
+                BT_ERR("Failed to create SCO info file");
 
         BT_INFO("SCO (Voice Link) ver %s", VERSION);
         BT_INFO("SCO socket layer initialized");