Don't try to select on an invalid VNC socket when init fails.

Otherwise we get a segfault.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5840 c046a42c-6fe2-441c-8c8c-71466251a162

vnc.c

@@ -2419,6 +2419,7 @@ int vnc_display_open(DisplayState *ds, const char *display)
         }
         if (-1 == vs->lsock) {
             free(dpy);
+            return -1;
         } else {
             free(vs->display);
             vs->display = dpy;