Hi Andrew,

On 18-07-28 02:22 PM, Andrew Lunn wrote:

quoted

@@ -198,10 +219,22 @@ static int mdio_mux_iproc_probe(struct platform_device *pdev)
 		return PTR_ERR(md->base);
 	}
 
+	md->core_clk = devm_clk_get(&pdev->dev, NULL);
+	if (IS_ERR(md->core_clk)) {
+		md->core_clk = NULL;
+	} else {
+		rc = clk_prepare_enable(md->core_clk);
+		if (rc) {
+			dev_err(&pdev->dev, "failed to enable core clk\n");
+			return rc;
+		}
+	}
+
 	md->mii_bus = mdiobus_alloc();
 	if (!md->mii_bus) {
 		dev_err(&pdev->dev, "mdiomux bus alloc failed\n");
-		return -ENOMEM;
+		rc = -ENOMEM;
+		goto out;

Hi Arun

There is a devm_mdiobus_alloc() which could make the cleanup on error
simple.

Should I do this as a separate patch ?

Thanks
Arun

quoted

 	}
 
 	bus = md->mii_bus;

@@ -217,7 +250,7 @@ static int mdio_mux_iproc_probe(struct platform_device *pdev)
 	rc = mdiobus_register(bus);
 	if (rc) {
 		dev_err(&pdev->dev, "mdiomux registration failed\n");
-		goto out;
+		goto out_alloc;
 	}
 
 	platform_set_drvdata(pdev, md);

@@ -236,8 +269,11 @@ static int mdio_mux_iproc_probe(struct platform_device *pdev)
 
 out_register:
 	mdiobus_unregister(bus);
-out:
+out_alloc:
 	mdiobus_free(bus);
+out:
+	if (md->core_clk)
+		clk_disable_unprepare(md->core_clk);
 	return rc;
 }

   Andrew