qemu-sockets: Fix potential memory leak

The old code leaks variable 'peer'.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>

qemu-sockets.c

diff --git a/qemu-sockets.c b/qemu-sockets.c
index 361d890..037775b 100644
--- a/qemu-sockets.c
+++ b/qemu-sockets.c
@@ -353,7 +353,7 @@
     if (0 != (rc = getaddrinfo(addr, port, &ai, &local))) {
         fprintf(stderr,"getaddrinfo(%s,%s): %s\n", addr, port,
                 gai_strerror(rc));
-        return -1;
+        goto err;
     }
 
     /* create socket */