Bluetooth: Refactor ACL connection into its own function

The hci_connect() function was starting to get too complicated to be
quickly understood. We can separate the creation of a new ACL
connection into its own function.
Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@openbossa.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

net/bluetooth/hci_conn.c

@@ -497,18 +497,10 @@ static struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
 	return le;
 }
 
-/* Create SCO, ACL or LE connection.
- * Device _must_ be locked */
-struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst,
-			     __u8 dst_type, __u8 sec_level, __u8 auth_type)
+static struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst,
+						u8 sec_level, u8 auth_type)
 {
 	struct hci_conn *acl;
-	struct hci_conn *sco;
-
-	BT_DBG("%s dst %s", hdev->name, batostr(dst));
-
-	if (type == LE_LINK)
-		return hci_connect_le(hdev, dst, dst_type, sec_level, auth_type);
 
 	acl = hci_conn_hash_lookup_ba(hdev, ACL_LINK, dst);
 	if (!acl) {
@@ -526,6 +518,26 @@ struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst,
 		hci_acl_create_connection(acl);
 	}
 
+	return acl;
+}
+
+/* Create SCO, ACL or LE connection.
+ * Device _must_ be locked */
+struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst,
+			     __u8 dst_type, __u8 sec_level, __u8 auth_type)
+{
+	struct hci_conn *acl;
+	struct hci_conn *sco;
+
+	BT_DBG("%s dst %s", hdev->name, batostr(dst));
+
+	if (type == LE_LINK)
+		return hci_connect_le(hdev, dst, dst_type, sec_level, auth_type);
+
+	acl = hci_connect_acl(hdev, dst, sec_level, auth_type);
+	if (IS_ERR(acl))
+		return acl;
+
 	if (type == ACL_LINK)
 		return acl;