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-rw-r--r--drivers/watchdog/it87_wdt.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/watchdog/it87_wdt.c b/drivers/watchdog/it87_wdt.c
index 9297a58919..3e8c15138e 100644
--- a/drivers/watchdog/it87_wdt.c
+++ b/drivers/watchdog/it87_wdt.c
@@ -213,12 +213,16 @@ static int wdt_stop(struct watchdog_device *wdd)
/**
* wdt_set_timeout - set a new timeout value with watchdog ioctl
+ * @wdd: pointer to the watchdog_device structure
* @t: timeout value in seconds
*
* The hardware device has a 8 or 16 bit watchdog timer (depends on
* chip version) that can be configured to count seconds or minutes.
*
* Used within WDIOC_SETTIMEOUT watchdog device ioctl.
+ *
+ * Return: 0 if the timeout was set successfully, or a negative error code on
+ * failure.
*/
static int wdt_set_timeout(struct watchdog_device *wdd, unsigned int t)