From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Date: Tue, 10 Nov 2020 09:42:05 +0000 (+0100)
Subject: rtc: destroy mutex when releasing the device
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=0d6d7a390b32ef23d957960d3bb8586a49d6af7c;p=uclinux-h8%2Flinux.git

rtc: destroy mutex when releasing the device

Not destroying mutexes doesn't lead to resource leak but it's the correct
thing to do for mutex debugging accounting.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20201110094205.8972-1-brgl@bgdev.pl
---

diff --git a/drivers/rtc/class.c b/drivers/rtc/class.c
index a1b3711aaf01..e6b44b7c4ad3 100644
--- a/drivers/rtc/class.c
+++ b/drivers/rtc/class.c
@@ -28,6 +28,7 @@ static void rtc_device_release(struct device *dev)
 	struct rtc_device *rtc = to_rtc_device(dev);
 
 	ida_simple_remove(&rtc_ida, rtc->id);
+	mutex_destroy(&rtc->ops_lock);
 	kfree(rtc);
 }