dwm

commit ebfe6719885e1b567d59828be3dc27cb5a0d4adf
parent d587dd65a4d55c810438336170301b67e69dcade
Author: Hiltjo Posthuma <hiltjo@codemadness.org>
Date:   Tue, 13 Oct 2026 14:39:44 +0200

check return value of XGetModifierMapping

Diffstat:
M
dwm.c
 | 
3
++-

1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/dwm.c b/dwm.c
@@ -1955,7 +1955,8 @@ updatenumlockmask(void)
 	XModifierKeymap *modmap;
 
 	numlockmask = 0;
-	modmap = XGetModifierMapping(dpy);
+	if (!(modmap = XGetModifierMapping(dpy)))
+		return;
 	for (i = 0; i < 8; i++)
 		for (j = 0; j < modmap->max_keypermod; j++)
 			if (modmap->modifiermap[i * modmap->max_keypermod + j]