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freifunkist-firmware/target/linux/ipq40xx/patches-4.14/706-ar40xx-abort-probe-on-m...

23 lines
614 B

--- a/drivers/net/phy/ar40xx.c
+++ b/drivers/net/phy/ar40xx.c
@@ -2021,6 +2021,12 @@ static int ar40xx_probe(struct platform_
/* register switch */
swdev = &priv->dev;
+ if (priv->mii_bus == NULL) {
+ dev_err(&pdev->dev, "Probe failed - Missing PHYs!\n");
+ ret = -ENODEV;
+ goto err_missing_phy;
+ }
+
swdev->alias = dev_name(&priv->mii_bus->dev);
swdev->cpu_port = AR40XX_PORT_CPU;
@@ -2052,6 +2058,7 @@ err_unregister_switch:
unregister_switch(&priv->dev);
err_unregister_phy:
phy_driver_unregister(&ar40xx_phy_driver);
+err_missing_phy:
platform_set_drvdata(pdev, NULL);
return ret;
}