diff -ruN linux-2.4.21/net/8021q/vlan.c linux-2.4.21.fixed/net/8021q/vlan.c
--- linux-2.4.21/net/8021q/vlan.c	Fri Jun 13 17:51:39 2003
+++ linux-2.4.21.fixed/net/8021q/vlan.c	Tue Aug 19 17:38:22 2003
@@ -533,7 +533,9 @@
 	    
 	grp->vlan_devices[VLAN_ID] = new_dev;
 
-	vlan_proc_add_dev(new_dev); /* create it's proc entry */
+	if (vlan_proc_add_dev(new_dev)<0)/* create it's proc entry */
+            	printk(KERN_WARNING "VLAN: failed to add proc entry for %s\n",
+					                 new_dev->name);
 
 	if (real_dev->features & NETIF_F_HW_VLAN_FILTER)
 		real_dev->vlan_rx_add_vid(real_dev, VLAN_ID);
diff -ruN linux-2.4.21/net/8021q/vlanproc.c linux-2.4.21.fixed/net/8021q/vlanproc.c
--- linux-2.4.21/net/8021q/vlanproc.c	Fri Jun 13 17:51:39 2003
+++ linux-2.4.21.fixed/net/8021q/vlanproc.c	Tue Aug 19 17:38:22 2003
@@ -204,8 +204,10 @@
 #endif
 
 	/** NOTE:  This will consume the memory pointed to by dent, it seems. */
-	remove_proc_entry(VLAN_DEV_INFO(vlandev)->dent->name, proc_vlan_dir);
-	VLAN_DEV_INFO(vlandev)->dent = NULL;
+	if (VLAN_DEV_INFO(vlandev)->dent) {
+		remove_proc_entry(VLAN_DEV_INFO(vlandev)->dent->name, proc_vlan_dir);
+		VLAN_DEV_INFO(vlandev)->dent = NULL;
+	}
 
 	return 0;
 }