linux-kernel - [PATCH] phy: tegra: add missing put_device() call in tegra210_xusb_padctl

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Message-Id: <1638881776-3308-1-git-send-email-wangqing@vivo.com>
Date:   Tue,  7 Dec 2021 04:56:15 -0800
From:   Qing Wang <wangqing@...o.com>
To:     JC Kuo <jckuo@...dia.com>, Kishon Vijay Abraham I <kishon@...com>,
        Vinod Koul <vkoul@...nel.org>,
        Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        linux-phy@...ts.infradead.org, linux-tegra@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Wang Qing <wangqing@...o.com>
Subject: [PATCH] phy: tegra: add missing put_device() call in tegra210_xusb_padctl_probe()

From: Wang Qing <wangqing@...o.com>

of_find_device_by_node() takes a reference to the embedded struct device 
which needs to be dropped when error return.

Signed-off-by: Wang Qing <wangqing@...o.com>
---
 drivers/phy/tegra/xusb-tegra210.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/phy/tegra/xusb-tegra210.c b/drivers/phy/tegra/xusb-tegra210.c
index eedfc7c..05a0800
--- a/drivers/phy/tegra/xusb-tegra210.c
+++ b/drivers/phy/tegra/xusb-tegra210.c
@@ -3170,8 +3170,10 @@ tegra210_xusb_padctl_probe(struct device *dev,
 		goto out;
 	}
 
-	if (!platform_get_drvdata(pdev))
+	if (!platform_get_drvdata(pdev)) {
+		put_device(&pdev->dev);
 		return ERR_PTR(-EPROBE_DEFER);
+	}
 
 	padctl->regmap = dev_get_regmap(&pdev->dev, "usb_sleepwalk");
 	if (!padctl->regmap)
-- 
2.7.4