staging: android: Use devm_kzalloc instead of kzalloc

Use devm_kzalloc instead of kzalloc in staging/android/timed_gpio.c
Signed-off-by: Georgiana Rodica Chelu <georgiana.chelu93@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/android/timed_gpio.c

@@ -90,7 +90,8 @@ static int timed_gpio_probe(struct platform_device *pdev)
 	if (!pdata)
 		return -EBUSY;
 
-	gpio_data = kzalloc(sizeof(struct timed_gpio_data) * pdata->num_gpios,
+	gpio_data = devm_kzalloc(&pdev->dev, 
+				sizeof(struct timed_gpio_data) * pdata->num_gpios,
 				GFP_KERNEL);
 	if (!gpio_data)
 		return -ENOMEM;
@@ -131,7 +132,6 @@ static int timed_gpio_probe(struct platform_device *pdev)
 		timed_output_dev_unregister(&gpio_data[i].dev);
 		gpio_free(gpio_data[i].gpio);
 	}
-	kfree(gpio_data);
 
 	return ret;
 }
@@ -147,8 +147,6 @@ static int timed_gpio_remove(struct platform_device *pdev)
 		gpio_free(gpio_data[i].gpio);
 	}
 
-	kfree(gpio_data);
-
 	return 0;
 }