linux-kernel - [PATCH -next 2/2] cpuidle: add put_device() after of_find_device_by

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date:   Fri, 10 Dec 2021 12:30:24 +0800
From:   Yang Li <yang.lee@...ux.alibaba.com>
To:     rafael@...nel.org, agross@...nel.org, bjorn.andersson@...aro.org,
        daniel.lezcano@...aro.org
Cc:     linux-arm-msm@...r.kernel.org, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org, Yang Li <yang.lee@...ux.alibaba.com>,
        Abaci Robot <abaci@...ux.alibaba.com>
Subject: [PATCH -next 2/2] cpuidle: add put_device() after of_find_device_by_node()

This was found by coccicheck:
./drivers/cpuidle/cpuidle-qcom-spm.c:129:1-7: ERROR: missing put_device;
call of_find_device_by_node on line 103, but without a corresponding
object release within this function.

Reported-by: Abaci Robot <abaci@...ux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@...ux.alibaba.com>
---
 drivers/cpuidle/cpuidle-qcom-spm.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/cpuidle/cpuidle-qcom-spm.c b/drivers/cpuidle/cpuidle-qcom-spm.c
index 01e77913a414..3952ea600122 100644
--- a/drivers/cpuidle/cpuidle-qcom-spm.c
+++ b/drivers/cpuidle/cpuidle-qcom-spm.c
@@ -111,6 +111,7 @@ static int spm_cpuidle_register(struct device *cpuidle_dev, int cpu)
 		return -ENOMEM;
 
 	data->spm = dev_get_drvdata(&pdev->dev);
+	put_device(&pdev->dev);
 	if (!data->spm)
 		return -EINVAL;
 
-- 
2.20.1.7.g153144c