--- net/bluetooth/sco.c	2024-03-11 04:38:09
+++ ../sco.c	2024-11-13 22:35:49
@@ -277,7 +277,6 @@
 		goto unlock;
 	}
 
-	lock_sock(sk);
 
 	err = sco_chan_add(conn, sk, NULL);
 	if (err) {
@@ -296,7 +295,6 @@
 		sco_sock_set_timer(sk, sk->sk_sndtimeo);
 	}
 
-	release_sock(sk);
 
 unlock:
 	hci_dev_unlock(hdev);
@@ -576,23 +574,23 @@
 	if (alen < sizeof(struct sockaddr_sco) ||
 	    addr->sa_family != AF_BLUETOOTH)
 		return -EINVAL;
-
-	if (sk->sk_state != BT_OPEN && sk->sk_state != BT_BOUND)
+	
+	lock_sock(sk);
+	if (sk->sk_state != BT_OPEN && sk->sk_state != BT_BOUND){
+		release_sock(sk);
 		return -EBADFD;
+	}
 
 	if (sk->sk_type != SOCK_SEQPACKET)
 		err = -EINVAL;
-
-	lock_sock(sk);
+	
 	/* Set destination address and psm */
 	bacpy(&sco_pi(sk)->dst, &sa->sco_bdaddr);
-	release_sock(sk);
 
 	err = sco_connect(sk);
 	if (err)
 		return err;
 
-	lock_sock(sk);
 
 	err = bt_sock_wait_state(sk, BT_CONNECTED,
 				 sock_sndtimeo(sk, flags & O_NONBLOCK));