--- zzzz-none-000/linux-3.10.107/drivers/isdn/mISDN/l1oip_codec.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/isdn/mISDN/l1oip_codec.c	2021-02-04 17:41:59.000000000 +0000
@@ -312,10 +312,8 @@
 void
 l1oip_4bit_free(void)
 {
-	if (table_dec)
-		vfree(table_dec);
-	if (table_com)
-		vfree(table_com);
+	vfree(table_dec);
+	vfree(table_com);
 	table_com = NULL;
 	table_dec = NULL;
 }