Bluetooth: Refactor hci_auth_complete_evt function

Replace if(conn) with if(!conn) checking to avoid too many nested statements
Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>

net/bluetooth/hci_event.c

@@ -1487,13 +1487,13 @@ static inline void hci_auth_complete_evt(struct hci_dev *hdev, struct sk_buff *s
 	hci_dev_lock(hdev);
 
 	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
-	if (conn) {
+	if (!conn)
+		goto unlock;
+
 	if (!ev->status) {
 		if (!(conn->ssp_mode > 0 && hdev->ssp_mode > 0) &&
-						test_bit(HCI_CONN_REAUTH_PEND,
-						&conn->pend)) {
-				BT_INFO("re-auth of legacy device is not"
-								"possible.");
+				test_bit(HCI_CONN_REAUTH_PEND,	&conn->pend)) {
+			BT_INFO("re-auth of legacy device is not possible.");
 		} else {
 			conn->link_mode |= HCI_LM_AUTH;
 			conn->sec_level = conn->pending_sec_level;
@@ -1506,13 +1506,12 @@ static inline void hci_auth_complete_evt(struct hci_dev *hdev, struct sk_buff *s
 	clear_bit(HCI_CONN_REAUTH_PEND, &conn->pend);
 
 	if (conn->state == BT_CONFIG) {
-			if (!ev->status && hdev->ssp_mode > 0 &&
-							conn->ssp_mode > 0) {
+		if (!ev->status && hdev->ssp_mode > 0 && conn->ssp_mode > 0) {
 			struct hci_cp_set_conn_encrypt cp;
 			cp.handle  = ev->handle;
 			cp.encrypt = 0x01;
-				hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT,
-							sizeof(cp), &cp);
+			hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
+									&cp);
 		} else {
 			conn->state = BT_CONNECTED;
 			hci_proto_connect_cfm(conn, ev->status);
@@ -1531,15 +1530,15 @@ static inline void hci_auth_complete_evt(struct hci_dev *hdev, struct sk_buff *s
 			struct hci_cp_set_conn_encrypt cp;
 			cp.handle  = ev->handle;
 			cp.encrypt = 0x01;
-				hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT,
-							sizeof(cp), &cp);
+			hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
+									&cp);
 		} else {
 			clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend);
 			hci_encrypt_cfm(conn, ev->status, 0x00);
 		}
 	}
-	}
 
+unlock:
 	hci_dev_unlock(hdev);
 }