i3-nagbar: correctly check for errors when connecting to X11

2011-07-27 13:30:12 +02:00 · 2011-07-27 13:30:12 +02:00 · 0d77ca9a3d
parent ec88f6501d
commit 0d77ca9a3d
1 changed files with 3 additions and 2 deletions
--- a/i3-nagbar/main.c
+++ b/i3-nagbar/main.c
@ -260,8 +260,9 @@ int main(int argc, char *argv[]) {
    }

    int screens;
-    xcb_connection_t *conn = xcb_connect(NULL, &screens);
-    if (xcb_connection_has_error(conn))
+    xcb_connection_t *conn;
+    if ((conn = xcb_connect(NULL, &screens)) == NULL ||
+        xcb_connection_has_error(conn))
        die("Cannot open display\n");

    /* Place requests for the atoms we need as soon as possible */