Bluetooth: hci_sync: Ignore errors from HCI_OP_REMOTE_NAME_REQ_CANCEL

This ignores errors from HCI_OP_REMOTE_NAME_REQ_CANCEL since it
shouldn't interfere with the stopping of discovery and in certain
conditions it seems to be failing.

Link: https://github.com/bluez/bluez/issues/575
Fixes: d0b13706 ("Bluetooth: hci_sync: Rework init stages")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

net/bluetooth/hci_sync.c

@@ -5380,7 +5380,10 @@ int hci_stop_discovery_sync(struct hci_dev *hdev)
 		if (!e)
 			return 0;
 
-		return hci_remote_name_cancel_sync(hdev, &e->data.bdaddr);
+		/* Ignore cancel errors since it should interfere with stopping
+		 * of the discovery.
+		 */
+		hci_remote_name_cancel_sync(hdev, &e->data.bdaddr);
 	}
 
 	return 0;