2 files changed, 23 insertions, 2 deletions

diff --git a/net/unix/Kconfig b/net/unix/Kconfig
new file mode 100644
index 0000000000..5a69733bcd
--- /dev/null
+++ b/net/unix/Kconfig
@@ -0,0 +1,21 @@
+#
+# Unix Domain Sockets
+#
+
+config UNIX
+        tristate "Unix domain sockets"
+        ---help---
+          If you say Y here, you will include support for Unix domain sockets;
+          sockets are the standard Unix mechanism for establishing and
+          accessing network connections.  Many commonly used programs such as
+          the X Window system and syslog use these sockets even if your
+          machine is not connected to any network.  Unless you are working on
+          an embedded system or something similar, you therefore definitely
+          want to say Y here.
+
+          To compile this driver as a module, choose M here: the module will be
+          called unix.  Note that several important services won't work
+          correctly if you say M here and then neglect to load the module.
+
+          Say Y unless you know what you are doing.
+
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index c420eba487..d403e34088 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -302,7 +302,7 @@ static void unix_write_space(struct sock *sk)
  * may receive messages only from that peer. */
 static void unix_dgram_disconnected(struct sock *sk, struct sock *other)
 {
-        if (skb_queue_len(&sk->sk_receive_queue)) {
+        if (!skb_queue_empty(&sk->sk_receive_queue)) {
                 skb_queue_purge(&sk->sk_receive_queue);
                 wake_up_interruptible_all(&unix_sk(sk)->peer_wait);
 
@@ -1619,7 +1619,7 @@ static long unix_stream_data_wait(struct sock * sk, long timeo)
         for (;;) {
                 prepare_to_wait(sk->sk_sleep, &wait, TASK_INTERRUPTIBLE);
 
-                if (skb_queue_len(&sk->sk_receive_queue) ||
+                if (!skb_queue_empty(&sk->sk_receive_queue) ||
                     sk->sk_err ||
                     (sk->sk_shutdown & RCV_SHUTDOWN) ||
                     signal_pending(current) ||