Make xcb_disconnect(NULL) safe

[free-sw/xcb/libxcb] / src / xcb_conn.c

diff --git a/src/xcb_conn.c b/src/xcb_conn.c
index ab901a9..fa50985 100644 (file)
--- a/src/xcb_conn.c
+++ b/src/xcb_conn.c
@@ -350,7 +350,7 @@ xcb_connection_t *xcb_connect_to_fd(int fd, xcb_auth_info_t *auth_info)
 
 void xcb_disconnect(xcb_connection_t *c)
 {
-    if(is_static_error_conn(c))
+    if(c == NULL || is_static_error_conn(c))
         return;
 
     free(c->setup);