net: macb: add missing free_netdev() on error in macb_probe()

Add the missing free_netdev() before return from function macb_probe()
in the platform_get_irq() error handling case.

Fixes: c69618b3 ("net/macb: fix probe sequence to setup clocks earlier")
Signed-off-by: NWei Yongjun <weiyj.lk@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/cadence/macb.c

@@ -2985,7 +2985,7 @@ static int macb_probe(struct platform_device *pdev)
 	dev->irq = platform_get_irq(pdev, 0);
 	if (dev->irq < 0) {
 		err = dev->irq;
-		goto err_disable_clocks;
+		goto err_out_free_netdev;
 	}
 
 	mac = of_get_mac_address(np);