[PATCH] watchdog: fix memory leak in error path

From: Pavel Machek
Date: Sun Sep 20 2020 - 04:37:59 EST


Fix memory leak in error path.

Signed-off-by: Pavel Machek (CIP) <pavel@xxxxxxx>

diff --git a/drivers/watchdog/watchdog_dev.c b/drivers/watchdog/watchdog_dev.c
index 6798addabd5a..785270ee337c 100644
--- a/drivers/watchdog/watchdog_dev.c
+++ b/drivers/watchdog/watchdog_dev.c
@@ -994,8 +994,10 @@ static int watchdog_cdev_register(struct watchdog_device *wdd)
wd_data->wdd = wdd;
wdd->wd_data = wd_data;

- if (IS_ERR_OR_NULL(watchdog_kworker))
+ if (IS_ERR_OR_NULL(watchdog_kworker)) {
+ kfree(wd_data);
return -ENODEV;
+ }

device_initialize(&wd_data->dev);
wd_data->dev.devt = MKDEV(MAJOR(watchdog_devt), wdd->id);

--
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