Input: jornada680_kbd - switch top using managed resources

Let's switch the driver to use managed resources, this will simplify
error handling and driver unbinding logic.

Signed-off-by: Himangi Saraogi <[e-mail]>
Signed-off-by: Dmitry Torokhov <[e-mail]>

drivers/input/keyboard/jornada680_kbd.c

···
  * published by the Free Software Foundation.
  */
 
+#include <linux/device.h>
 #include <linux/input.h>
 #include <linux/input-polldev.h>
 #include <linux/interrupt.h>
···
 	struct input_dev *input_dev;
 	int i, error;
 
-	jornadakbd = kzalloc(sizeof(struct jornadakbd), GFP_KERNEL);
+	jornadakbd = devm_kzalloc(&pdev->dev, sizeof(struct jornadakbd),
+				  GFP_KERNEL);
 	if (!jornadakbd)
 		return -ENOMEM;
 
-	poll_dev = input_allocate_polled_device();
+	poll_dev = devm_input_allocate_polled_device(&pdev->dev);
 	if (!poll_dev) {
-		error = -ENOMEM;
-		goto failed;
+		dev_err(&pdev->dev, "failed to allocate polled input device\n");
+		return -ENOMEM;
 	}
 
 	platform_set_drvdata(pdev, jornadakbd);
···
 	input_set_capability(input_dev, EV_MSC, MSC_SCAN);
 
 	error = input_register_polled_device(jornadakbd->poll_dev);
-	if (error)
-		goto failed;
-
-	return 0;
-
- failed:
-	printk(KERN_ERR "Jornadakbd: failed to register driver, error: %d\n",
-		error);
-	input_free_polled_device(poll_dev);
-	kfree(jornadakbd);
-	return error;
-
-}
-
-static int jornada680kbd_remove(struct platform_device *pdev)
-{
-	struct jornadakbd *jornadakbd = platform_get_drvdata(pdev);
-
-	input_unregister_polled_device(jornadakbd->poll_dev);
-	input_free_polled_device(jornadakbd->poll_dev);
-	kfree(jornadakbd);
+	if (error) {
+		dev_err(&pdev->dev, "failed to register polled input device\n");
+		return error;
+	}
 
 	return 0;
 }
···
 		.owner	= THIS_MODULE,
 	},
 	.probe	= jornada680kbd_probe,
-	.remove	= jornada680kbd_remove,
 };
 module_platform_driver(jornada680kbd_driver);