watchdog: wm831x_wdt: use devm_gpio_request_one()
Use devm_gpio_request_one() to make cleanup paths simpler.
Also, GPIOF_DIR_OUT | GPIOF_INIT_LOW is replaced with
GPIOF_OUT_INIT_LOW.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
diff --git a/drivers/watchdog/wm831x_wdt.c b/drivers/watchdog/wm831x_wdt.c
index 9dcb6d0..3348ddd 100644
--- a/drivers/watchdog/wm831x_wdt.c
+++ b/drivers/watchdog/wm831x_wdt.c
@@ -247,9 +247,10 @@
reg |= pdata->software << WM831X_WDOG_RST_SRC_SHIFT;
if (pdata->update_gpio) {
- ret = gpio_request_one(pdata->update_gpio,
- GPIOF_DIR_OUT | GPIOF_INIT_LOW,
- "Watchdog update");
+ ret = devm_gpio_request_one(&pdev->dev,
+ pdata->update_gpio,
+ GPIOF_OUT_INIT_LOW,
+ "Watchdog update");
if (ret < 0) {
dev_err(wm831x->dev,
"Failed to request update GPIO: %d\n",
@@ -270,7 +271,7 @@
} else {
dev_err(wm831x->dev,
"Failed to unlock security key: %d\n", ret);
- goto err_gpio;
+ goto err;
}
}
@@ -278,16 +279,13 @@
if (ret != 0) {
dev_err(wm831x->dev, "watchdog_register_device() failed: %d\n",
ret);
- goto err_gpio;
+ goto err;
}
dev_set_drvdata(&pdev->dev, driver_data);
return 0;
-err_gpio:
- if (driver_data->update_gpio)
- gpio_free(driver_data->update_gpio);
err:
return ret;
}
@@ -298,9 +296,6 @@
watchdog_unregister_device(&driver_data->wdt);
- if (driver_data->update_gpio)
- gpio_free(driver_data->update_gpio);
-
return 0;
}