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From: Yu Kuai <yukuai3@huawei.com>
To: <Peter.Chen@nxp.com>, <gregkh@linuxfoundation.org>,
	<shawnguo@kernel.org>, <s.hauer@pengutronix.de>
Cc: <linux-usb@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>, <yukuai3@huawei.com>,
	<yi.zhang@huawei.com>, <zhangxiaoxu5@huawei.com>
Subject: [PATCH] usb: chipidea: ci_hdrc_imx: add missing put_device() call in usbmisc_get_init_data()
Date: Tue, 17 Nov 2020 09:14:30 +0800	[thread overview]
Message-ID: <20201117011430.642589-1-yukuai3@huawei.com> (raw)

if of_find_device_by_node() succeed, usbmisc_get_init_data() doesn't have
a corresponding put_device(). Thus add put_device() to fix the exception
handling for this function implementation.

Fixes: commit ef12da914ed6 ("usb: chipidea: imx: properly check for usbmisc")
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
---
 drivers/usb/chipidea/ci_hdrc_imx.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c
index 25c65accf089..d4b1069b86ec 100644
--- a/drivers/usb/chipidea/ci_hdrc_imx.c
+++ b/drivers/usb/chipidea/ci_hdrc_imx.c
@@ -138,9 +138,13 @@ static struct imx_usbmisc_data *usbmisc_get_init_data(struct device *dev)
 	misc_pdev = of_find_device_by_node(args.np);
 	of_node_put(args.np);
 
-	if (!misc_pdev || !platform_get_drvdata(misc_pdev))
+	if (!misc_pdev)
 		return ERR_PTR(-EPROBE_DEFER);
 
+	if (!platform_get_drvdata(misc_pdev)) {
+		put_device(&misc_pdev->dev);
+		return ERR_PTR(-EPROBE_DEFER);
+	}
 	data->dev = &misc_pdev->dev;
 
 	/*
-- 
2.25.4


WARNING: multiple messages have this Message-ID (diff)
From: Yu Kuai <yukuai3@huawei.com>
To: <Peter.Chen@nxp.com>, <gregkh@linuxfoundation.org>,
	<shawnguo@kernel.org>,  <s.hauer@pengutronix.de>
Cc: yi.zhang@huawei.com, linux-usb@vger.kernel.org,
	linux-kernel@vger.kernel.org, yukuai3@huawei.com,
	zhangxiaoxu5@huawei.com, linux-arm-kernel@lists.infradead.org
Subject: [PATCH] usb: chipidea: ci_hdrc_imx: add missing put_device() call in usbmisc_get_init_data()
Date: Tue, 17 Nov 2020 09:14:30 +0800	[thread overview]
Message-ID: <20201117011430.642589-1-yukuai3@huawei.com> (raw)

if of_find_device_by_node() succeed, usbmisc_get_init_data() doesn't have
a corresponding put_device(). Thus add put_device() to fix the exception
handling for this function implementation.

Fixes: commit ef12da914ed6 ("usb: chipidea: imx: properly check for usbmisc")
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
---
 drivers/usb/chipidea/ci_hdrc_imx.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c
index 25c65accf089..d4b1069b86ec 100644
--- a/drivers/usb/chipidea/ci_hdrc_imx.c
+++ b/drivers/usb/chipidea/ci_hdrc_imx.c
@@ -138,9 +138,13 @@ static struct imx_usbmisc_data *usbmisc_get_init_data(struct device *dev)
 	misc_pdev = of_find_device_by_node(args.np);
 	of_node_put(args.np);
 
-	if (!misc_pdev || !platform_get_drvdata(misc_pdev))
+	if (!misc_pdev)
 		return ERR_PTR(-EPROBE_DEFER);
 
+	if (!platform_get_drvdata(misc_pdev)) {
+		put_device(&misc_pdev->dev);
+		return ERR_PTR(-EPROBE_DEFER);
+	}
 	data->dev = &misc_pdev->dev;
 
 	/*
-- 
2.25.4


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             reply	other threads:[~2020-11-17  1:11 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-17  1:14 Yu Kuai [this message]
2020-11-17  1:14 ` [PATCH] usb: chipidea: ci_hdrc_imx: add missing put_device() call in usbmisc_get_init_data() Yu Kuai

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