diff --git a/drivers/net/can/slcan.c b/drivers/net/can/slcan.c
index 929cb55e08af..cf05c30b8da5 100644
--- a/drivers/net/can/slcan.c
+++ b/drivers/net/can/slcan.c
@@ -432,11 +432,17 @@ static int slc_open(struct net_device *dev)
 
 static void slc_dealloc(struct slcan *sl)
 {
-	int i = sl->dev->base_addr;
+	unsigned int i;
 
-	free_candev(sl->dev);
-	if (slcan_devs)
-		slcan_devs[i] = NULL;
+	for (i = 0; i < maxdev; i++) {
+		if (sl->dev == slcan_devs[i]) {
+			free_candev(sl->dev);
+			slcan_devs[i] = NULL;
+			return;
+		}
+	}
+
+	pr_err("slcan: can't free %s resources\n",  sl->dev->name);
 }
 
 static int slcan_change_mtu(struct net_device *dev, int new_mtu)
@@ -533,7 +539,6 @@ static struct slcan *slc_alloc(void)
 
 	snprintf(dev->name, sizeof(dev->name), "slcan%d", i);
 	dev->netdev_ops = &slc_netdev_ops;
-	dev->base_addr  = i;
 	sl = netdev_priv(dev);
 
 	/* Initialize channel control data */