diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c index 4c3bd0516038..7960fd514e5a 100644 --- a/net/bluetooth/af_bluetooth.c +++ b/net/bluetooth/af_bluetooth.c @@ -307,11 +307,14 @@ int bt_sock_recvmsg(struct socket *sock, struct msghdr *msg, size_t len, if (flags & MSG_OOB) return -EOPNOTSUPP; + lock_sock(sk); + skb = skb_recv_datagram(sk, flags, &err); if (!skb) { if (sk->sk_shutdown & RCV_SHUTDOWN) err = 0; + release_sock(sk); return err; } @@ -337,6 +340,8 @@ int bt_sock_recvmsg(struct socket *sock, struct msghdr *msg, size_t len, skb_free_datagram(sk, skb); + release_sock(sk); + if (flags & MSG_TRUNC) copied = skblen; @@ -559,11 +564,10 @@ int bt_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) if (sk->sk_state == BT_LISTEN) return -EINVAL; - spin_lock(&sk->sk_receive_queue.lock); + lock_sock(sk); skb = skb_peek(&sk->sk_receive_queue); amount = skb ? skb->len : 0; - spin_unlock(&sk->sk_receive_queue.lock); - + release_sock(sk); err = put_user(amount, (int __user *)arg); break;