--- zzzz-none-000/linux-3.10.107/drivers/isdn/hisax/netjet.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/isdn/hisax/netjet.c	2021-02-04 17:41:59.000000000 +0000
@@ -176,7 +176,7 @@
 		else
 			j = i;
 		QuickHex(t, p, j);
-		debugl1(cs, tmp);
+		debugl1(cs, "%s", tmp);
 		p += j;
 		i -= j;
 		t = tmp;