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-rw-r--r--drivers/watchdog/watchdog_dev.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/watchdog/watchdog_dev.c b/drivers/watchdog/watchdog_dev.c
index 2d6110278eac..e2c5abbb45ff 100644
--- a/drivers/watchdog/watchdog_dev.c
+++ b/drivers/watchdog/watchdog_dev.c
@@ -711,6 +711,7 @@ static int watchdog_release(struct inode *inode, struct file *file)
struct watchdog_core_data *wd_data = file->private_data;
struct watchdog_device *wdd;
int err = -EBUSY;
+ bool running;
mutex_lock(&wd_data->lock);
@@ -742,14 +743,15 @@ static int watchdog_release(struct inode *inode, struct file *file)
clear_bit(_WDOG_DEV_OPEN, &wd_data->status);
done:
+ running = wdd && watchdog_hw_running(wdd);
mutex_unlock(&wd_data->lock);
/*
* Allow the owner module to be unloaded again unless the watchdog
* is still running. If the watchdog is still running, it can not
* be stopped, and its driver must not be unloaded.
*/
- if (!watchdog_hw_running(wdd)) {
- module_put(wdd->ops->owner);
+ if (!running) {
+ module_put(wd_data->cdev.owner);
kref_put(&wd_data->kref, watchdog_core_data_release);
}
return 0;