can: flexcan: flexcan_remove(): add missing netif_napi_del()

commit d96e43e8 upstream.

This patch adds the missing netif_napi_del() to the flexcan_remove() function.
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

drivers/net/can/flexcan.c

@@ -1027,6 +1027,7 @@ static int __devexit flexcan_remove(struct platform_device *pdev)
 	struct resource *mem;
 
 	unregister_flexcandev(dev);
+	netif_napi_del(&priv->napi);
 	platform_set_drvdata(pdev, NULL);
 	iounmap(priv->base);