[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Message-ID: <20221130101251.245399-1-yiyang13@huawei.com>
Date: Wed, 30 Nov 2022 18:12:51 +0800
From: Yi Yang <yiyang13@...wei.com>
To: <linus.walleij@...aro.org>, <gregkh@...uxfoundation.org>,
<yiyang13@...wei.com>
CC: <linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH] usb: fotg210-udc: fix potential memory leak in fotg210_udc_probe()
In fotg210_udc_probe(), if devm_clk_get() or clk_prepare_enable()
fails, 'fotg210' will not be freed, which will lead to a memory leak.
Fix it by moving kfree() to a proper location.
Fixes: 718a38d092ec ("fotg210-udc: Handle PCLK")
Signed-off-by: Yi Yang <yiyang13@...wei.com>
---
drivers/usb/fotg210/fotg210-udc.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/usb/fotg210/fotg210-udc.c b/drivers/usb/fotg210/fotg210-udc.c
index b9ea6c6d931c..a366d69c1818 100644
--- a/drivers/usb/fotg210/fotg210-udc.c
+++ b/drivers/usb/fotg210/fotg210-udc.c
@@ -1178,7 +1178,7 @@ int fotg210_udc_probe(struct platform_device *pdev)
ret = clk_prepare_enable(fotg210->pclk);
if (ret) {
dev_err(dev, "failed to enable PCLK\n");
- return ret;
+ goto err;
}
} else if (PTR_ERR(fotg210->pclk) == -EPROBE_DEFER) {
/*
@@ -1302,8 +1302,7 @@ int fotg210_udc_probe(struct platform_device *pdev)
if (!IS_ERR(fotg210->pclk))
clk_disable_unprepare(fotg210->pclk);
- kfree(fotg210);
-
err:
+ kfree(fotg210);
return ret;
}
--
2.17.1
Powered by blists - more mailing lists