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authorZhang Qilong <zhangqilong3@huawei.com>2020-10-30 18:49:09 +0300
committerWim Van Sebroeck <wim@linux-watchdog.org>2020-12-13 18:17:40 +0300
commit8711071e9700b67045fe5518161d63f7a03e3c9e (patch)
treeff4acdab7061b0481e2750a52a0a7420ecf1183e /drivers/watchdog
parent8650d0f9e9334f2e1c209f1e2ac8341f91e30d75 (diff)
downloadlinux-8711071e9700b67045fe5518161d63f7a03e3c9e.tar.xz
watchdog: rti-wdt: fix reference leak in rti_wdt_probe
pm_runtime_get_sync() will increment pm usage counter even it failed. Forgetting to call pm_runtime_put_noidle will result in reference leak in rti_wdt_probe, so we should fix it. Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20201030154909.100023-1-zhangqilong3@huawei.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Diffstat (limited to 'drivers/watchdog')
-rw-r--r--drivers/watchdog/rti_wdt.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/watchdog/rti_wdt.c b/drivers/watchdog/rti_wdt.c
index 836319cbaca9..359302f71f7e 100644
--- a/drivers/watchdog/rti_wdt.c
+++ b/drivers/watchdog/rti_wdt.c
@@ -227,8 +227,10 @@ static int rti_wdt_probe(struct platform_device *pdev)
pm_runtime_enable(dev);
ret = pm_runtime_get_sync(dev);
- if (ret)
+ if (ret) {
+ pm_runtime_put_noidle(dev);
return dev_err_probe(dev, ret, "runtime pm failed\n");
+ }
platform_set_drvdata(pdev, wdt);