[PATCH 03/15] gpio: adnp: use devm_mutex_init()

[Bartosz Golaszewski <brgl@bgdev.pl>]

From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

The mutex initialized in probe() is never cleaned up. Use
devm_mutex_init() to do it automatically.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
---
 drivers/gpio/gpio-adnp.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/gpio/gpio-adnp.c b/drivers/gpio/gpio-adnp.c
index dc87768276ec..d6ae9cf1eb54 100644
--- a/drivers/gpio/gpio-adnp.c
+++ b/drivers/gpio/gpio-adnp.c
@@ -9,6 +9,7 @@
 #include <linux/interrupt.h>
 #include <linux/mod_devicetable.h>
 #include <linux/module.h>
+#include <linux/mutex.h>
 #include <linux/property.h>
 #include <linux/seq_file.h>
 #include <linux/slab.h>
@@ -482,7 +483,10 @@ static int adnp_i2c_probe(struct i2c_client *client)
 	if (!adnp)
 		return -ENOMEM;
 
-	mutex_init(&adnp->i2c_lock);
+	err = devm_mutex_init(&client->dev, &adnp->i2c_lock);
+	if (err)
+		return err;
+
 	adnp->client = client;
 
 	err = adnp_gpio_setup(adnp, num_gpios, device_property_read_bool(dev, "interrupt-controller"));

-- 
2.45.2