linux-kernel - [PATCH -next 1/3] usb: host: xhci-tegra: add missing put_device() in tegra_xusb

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Message-ID: <20210616044519.2183826-1-yangyingliang@huawei.com>
Date:   Wed, 16 Jun 2021 12:45:17 +0800
From:   Yang Yingliang <yangyingliang@...wei.com>
To:     <linux-kernel@...r.kernel.org>, <linux-tegra@...r.kernel.org>,
        <linux-usb@...r.kernel.org>
CC:     <gregkh@...uxfoundation.org>, <thierry.reding@...il.com>
Subject: [PATCH -next 1/3] usb: host: xhci-tegra: add missing put_device() in tegra_xusb_probe()

Goto put_padctl to put refcount of device on error in tegra_xusb_probe()

Fixes: 971ee247060d ("usb: xhci: tegra: Enable ELPG for runtime/system PM")
Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Yang Yingliang <yangyingliang@...wei.com>
---
 drivers/usb/host/xhci-tegra.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/host/xhci-tegra.c b/drivers/usb/host/xhci-tegra.c
index 937b78cba89b..281abf10f9fd 100644
--- a/drivers/usb/host/xhci-tegra.c
+++ b/drivers/usb/host/xhci-tegra.c
@@ -1450,12 +1450,16 @@ static int tegra_xusb_probe(struct platform_device *pdev)
 		return PTR_ERR(tegra->padctl);
 
 	np = of_parse_phandle(pdev->dev.of_node, "nvidia,xusb-padctl", 0);
-	if (!np)
-		return -ENODEV;
+	if (!np) {
+		err = -ENODEV;
+		goto put_padctl;
+	}
 
 	tegra->padctl_irq = of_irq_get(np, 0);
-	if (tegra->padctl_irq <= 0)
-		return (tegra->padctl_irq == 0) ? -ENODEV : tegra->padctl_irq;
+	if (tegra->padctl_irq <= 0) {
+		err = (tegra->padctl_irq == 0) ? -ENODEV : tegra->padctl_irq;
+		goto put_padctl;
+	}
 
 	tegra->host_clk = devm_clk_get(&pdev->dev, "xusb_host");
 	if (IS_ERR(tegra->host_clk)) {
-- 
2.25.1