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Message-ID: <0f103384-376c-41f0-a35c-8ad98327d6cb@web.de>
Date: Thu, 3 Oct 2024 11:15:18 +0200
From: Markus Elfring <Markus.Elfring@....de>
To: linux-pm@...r.kernel.org, Chanwoo Choi <cw00.choi@...sung.com>,
Kyungmin Park <kyungmin.park@...sung.com>,
MyungJoo Ham <myungjoo.ham@...sung.com>
Cc: LKML <linux-kernel@...r.kernel.org>, kernel-janitors@...r.kernel.org
Subject: [PATCH] PM / devfreq: event: Call of_node_put() only once in
devfreq_event_get_edev_by_phandle()
From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Thu, 3 Oct 2024 11:01:30 +0200
An of_node_put(node) call was immediately used after a null pointer check
for the local variable “edev” at the end of this function implementation.
Thus call such a function only once instead directly before the check.
This issue was transformed by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
drivers/devfreq/devfreq-event.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/drivers/devfreq/devfreq-event.c b/drivers/devfreq/devfreq-event.c
index 3ebac2496679..70219099c604 100644
--- a/drivers/devfreq/devfreq-event.c
+++ b/drivers/devfreq/devfreq-event.c
@@ -244,13 +244,9 @@ struct devfreq_event_dev *devfreq_event_get_edev_by_phandle(struct device *dev,
edev = NULL;
out:
mutex_unlock(&devfreq_event_list_lock);
-
- if (!edev) {
- of_node_put(node);
- return ERR_PTR(-ENODEV);
- }
-
of_node_put(node);
+ if (!edev)
+ return ERR_PTR(-ENODEV);
return edev;
}
--
2.46.1
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