linux-kernel - [PATCH v2 07/10] usb: phy: tegra: Use devm_otg_ulpi

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Date:   Fri, 20 Dec 2019 04:52:35 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Peter Chen <Peter.Chen@....com>,
        Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Felipe Balbi <balbi@...nel.org>
Cc:     devicetree@...r.kernel.org, linux-usb@...r.kernel.org,
        linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 07/10] usb: phy: tegra: Use devm_otg_ulpi_create()

The resource-managed variant removes the necessity for the driver to care
about freeing ULPI resources.

Suggested-by: Thierry Reding <thierry.reding@...il.com>
Signed-off-by: Dmitry Osipenko <digetx@...il.com>
---
 drivers/usb/phy/phy-tegra-usb.c | 21 +++++----------------
 1 file changed, 5 insertions(+), 16 deletions(-)

diff --git a/drivers/usb/phy/phy-tegra-usb.c b/drivers/usb/phy/phy-tegra-usb.c
index 9ce6699f40e7..d5739b6e0b6c 100644
--- a/drivers/usb/phy/phy-tegra-usb.c
+++ b/drivers/usb/phy/phy-tegra-usb.c
@@ -1170,7 +1170,9 @@ static int tegra_usb_phy_probe(struct platform_device *pdev)
 			return err;
 		}
 
-		tegra_phy->ulpi = otg_ulpi_create(&ulpi_viewport_access_ops, 0);
+		tegra_phy->ulpi = devm_otg_ulpi_create(&pdev->dev,
+						       &ulpi_viewport_access_ops,
+						       0);
 		if (!tegra_phy->ulpi) {
 			dev_err(&pdev->dev, "Failed to create ULPI OTG\n");
 			err = -ENOMEM;
@@ -1205,18 +1207,10 @@ static int tegra_usb_phy_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, tegra_phy);
 
 	err = usb_add_phy_dev(&tegra_phy->u_phy);
-	if (err < 0)
-		goto free_ulpi;
+	if (err)
+		return err;
 
 	return 0;
-
-free_ulpi:
-	if (tegra_phy->ulpi) {
-		kfree(tegra_phy->ulpi->otg);
-		kfree(tegra_phy->ulpi);
-	}
-
-	return err;
 }
 
 static int tegra_usb_phy_remove(struct platform_device *pdev)
@@ -1225,11 +1219,6 @@ static int tegra_usb_phy_remove(struct platform_device *pdev)
 
 	usb_remove_phy(&tegra_phy->u_phy);
 
-	if (tegra_phy->ulpi) {
-		kfree(tegra_phy->ulpi->otg);
-		kfree(tegra_phy->ulpi);
-	}
-
 	return 0;
 }
 
-- 
2.24.0