o wanrouter: fix bug introduced by latest namespace fix

Thanks to Adrian Bunk for reporting.

include/linux/wanrouter.h

@@ -534,7 +534,8 @@ extern void unlock_adapter_irq(spinlock_t *lock, unsigned long *smp_flags);
 
 
 /* Public Data */
-extern struct wan_device *router_devlist;	/* list of registered devices */
+/* list of registered devices */
+extern struct wan_device *wanrouter_router_devlist;
 
 #endif	/* __KERNEL__ */
 #endif	/* _ROUTER_H */

net/wanrouter/wanproc.c

@@ -87,7 +87,8 @@ static void *r_start(struct seq_file *m, loff_t *pos)
 	lock_kernel();
 	if (!l--)
 		return (void *)1;
-	for (wandev = router_devlist; l-- && wandev; wandev = wandev->next)
+	for (wandev = wanrouter_router_devlist; l-- && wandev;
+	     wandev = wandev->next)
 		;
 	return wandev;
 }
@@ -96,7 +97,7 @@ static void *r_next(struct seq_file *m, void *v, loff_t *pos)
 {
 	struct wan_device *wandev = v;
 	(*pos)++;
-	return (v == (void *)1) ? router_devlist : wandev->next;
+	return (v == (void *)1) ? wanrouter_router_devlist : wandev->next;
 }
 
 static void r_stop(struct seq_file *m, void *v)