From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Date: Tue, 10 Jun 2025 14:38:18 +0000 (+0200)
Subject: gpio: sysfs: call mutex_destroy() in gpiod_unexport()
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e1f02b40a741aac47016765c21b61e91d19aa1ec;p=thirdparty%2Fkernel%2Flinux.git

gpio: sysfs: call mutex_destroy() in gpiod_unexport()

While not critical, it's useful to have the corresponding call to
mutex_destroy() whenever we use mutex_init(). Add the call right before
kfreeing the GPIO data.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20250610-gpio-sysfs-chip-export-v1-3-a8c7aa4478b1@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
---

diff --git a/drivers/gpio/gpiolib-sysfs.c b/drivers/gpio/gpiolib-sysfs.c
index 4a3aa09dad9d5..cd3381a4bc93a 100644
--- a/drivers/gpio/gpiolib-sysfs.c
+++ b/drivers/gpio/gpiolib-sysfs.c
@@ -713,6 +713,7 @@ void gpiod_unexport(struct gpio_desc *desc)
 	}
 
 	put_device(dev);
+	mutex_destroy(&data->mutex);
 	kfree(data);
 }
 EXPORT_SYMBOL_GPL(gpiod_unexport);