can: flexcan: fix use after free of priv

The priv is part of the memory allocated by alloc_candev().
This patch moved the free it after last usage of priv.
Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/can/flexcan.c

@@ -992,7 +992,6 @@ static int __devexit flexcan_remove(struct platform_device *pdev)
 
 	unregister_flexcandev(dev);
 	platform_set_drvdata(pdev, NULL);
-	free_candev(dev);
 	iounmap(priv->base);
 
 	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -1000,6 +999,8 @@ static int __devexit flexcan_remove(struct platform_device *pdev)
 
 	clk_put(priv->clk);
 
+	free_candev(dev);
+
 	return 0;
 }