can: m_can: m_can_class_allocate_dev(): remove impossible error retur…

…n judgment

If the CAN net device has been successfully allocated, its private
data structure is impossible to be empty, remove this redundant error
return judgment.

Link: https://lore.kernel.org/r/20210205072559.13241-2-xulin.sun@windriver.com
Signed-off-by: Xulin Sun <xulin.sun@windriver.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

drivers/net/can/m_can/m_can.c

@@ -1787,11 +1787,6 @@ struct m_can_classdev *m_can_class_allocate_dev(struct device *dev,
 	}
 
 	class_dev = netdev_priv(net_dev);
-	if (!class_dev) {
-		dev_err(dev, "Failed to init netdev cdevate");
-		goto out;
-	}
-
 	class_dev->net = net_dev;
 	class_dev->dev = dev;
 	SET_NETDEV_DEV(net_dev, dev);