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watchdog: Convert wm831x driver to devm_kzalloc() 

Saves a small amount of code and systematically eliminates leaks.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
This commit is contained in:
Mark Brown 2011-12-15 02:23:19 +08:00 committed by Wim Van Sebroeck
parent ff0b3cd4a4
commit 7b9bb6d8cf
1 changed files with 3 additions and 4 deletions
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7
drivers/watchdog/wm831x_wdt.c
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@ -199,7 +199,8 @@ static int __devinit wm831x_wdt_probe(struct platform_device *pdev)
if (reg & WM831X_WDOG_DEBUG)
dev_warn(wm831x->dev, "Watchdog is paused\n");
driver_data = kzalloc(sizeof(*driver_data), GFP_KERNEL);
driver_data = devm_kzalloc(&pdev->dev, sizeof(*driver_data),
GFP_KERNEL);
if (!driver_data) {
dev_err(wm831x->dev, "Unable to alloacate watchdog device\n");
ret = -ENOMEM;
@ -250,7 +251,7 @@ static int __devinit wm831x_wdt_probe(struct platform_device *pdev)
dev_err(wm831x->dev,
"Failed to request update GPIO: %d\n",
ret);
goto err_alloc;
goto err;
}
ret = gpio_direction_output(pdata->update_gpio, 0);
@ -292,8 +293,6 @@ static int __devinit wm831x_wdt_probe(struct platform_device *pdev)
err_gpio:
if (driver_data->update_gpio)
gpio_free(driver_data->update_gpio);
err_alloc:
kfree(driver_data);
err:
return ret;
}