potential crash fix if xinerama behaves broken, though I doubt it

diff --git a/dwm.c b/dwm.c
index 34bcd99..52bb9f1 100644 (file)
--- a/dwm.c
+++ b/dwm.c
@@ -1562,8 +1562,7 @@ updategeom(void) {
        XineramaScreenInfo *info = NULL;
 
        /* window area geometry */
-       if(XineramaIsActive(dpy)) {
-               info = XineramaQueryScreens(dpy, &n);
+       if(XineramaIsActive(dpy) && (info = XineramaQueryScreens(dpy, &n))) { 
                if(n > 1) {
                        int di, x, y;
                        unsigned int dui;