Patch "watchdog: rzg2l_wdt: Check return status of pm_runtime_put()" has been added to the 6.6-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    watchdog: rzg2l_wdt: Check return status of pm_runtime_put()

to the 6.6-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     watchdog-rzg2l_wdt-check-return-status-of-pm_runtime.patch
and it can be found in the queue-6.6 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 9794d9487b4b84550b72d8faa81ad680496583a7
Author: Claudiu Beznea <claudiu.beznea.uj@xxxxxxxxxxxxxx>
Date:   Fri May 31 09:57:18 2024 +0300

    watchdog: rzg2l_wdt: Check return status of pm_runtime_put()
    
    [ Upstream commit 471e45a33302852bf79bc140fe418782f50734f6 ]
    
    pm_runtime_put() may return an error code. Check its return status.
    
    Along with it the rzg2l_wdt_set_timeout() function was updated to
    propagate the result of rzg2l_wdt_stop() to its caller.
    
    Fixes: 2cbc5cd0b55f ("watchdog: Add Watchdog Timer driver for RZ/G2L")
    Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@xxxxxxxxxxxxxx>
    Reviewed-by: Guenter Roeck <linux@xxxxxxxxxxxx>
    Link: https://lore.kernel.org/r/20240531065723.1085423-5-claudiu.beznea.uj@xxxxxxxxxxxxxx
    Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
    Signed-off-by: Wim Van Sebroeck <wim@xxxxxxxxxxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/watchdog/rzg2l_wdt.c b/drivers/watchdog/rzg2l_wdt.c
index d87d4f50180c5..7bce093316c4d 100644
--- a/drivers/watchdog/rzg2l_wdt.c
+++ b/drivers/watchdog/rzg2l_wdt.c
@@ -144,9 +144,13 @@ static int rzg2l_wdt_start(struct watchdog_device *wdev)
 static int rzg2l_wdt_stop(struct watchdog_device *wdev)
 {
 	struct rzg2l_wdt_priv *priv = watchdog_get_drvdata(wdev);
+	int ret;
 
 	rzg2l_wdt_reset(priv);
-	pm_runtime_put(wdev->parent);
+
+	ret = pm_runtime_put(wdev->parent);
+	if (ret < 0)
+		return ret;
 
 	return 0;
 }
@@ -163,7 +167,10 @@ static int rzg2l_wdt_set_timeout(struct watchdog_device *wdev, unsigned int time
 	 * to reset the module) so that it is updated with new timeout values.
 	 */
 	if (watchdog_active(wdev)) {
-		rzg2l_wdt_stop(wdev);
+		ret = rzg2l_wdt_stop(wdev);
+		if (ret)
+			return ret;
+
 		ret = rzg2l_wdt_start(wdev);
 	}