net: Fix -net socket,listen (Jan Kiszka)

In case no symbolic name is provided when requesting VLAN connection via
listening TCP socket ('-net socket,listen=...'), qemu crashes. This
fixes the cause.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Glauber Costa <glommer@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/net.c b/net.c
index ae54421801..3938a029c5 100644
--- a/net.c
+++ b/net.c
@@ -1468,7 +1468,7 @@ static int net_socket_listen_init(VLANState *vlan,
     }
     s->vlan = vlan;
     s->model = strdup(model);
-    s->name = strdup(name);
+    s->name = name ? strdup(name) : NULL;
     s->fd = fd;
     qemu_set_fd_handler(fd, net_socket_accept, NULL, s);
     return 0;