Input: jornada720_ts - switch to using managed resources

This switches the driver to using managed resources to simplify error
handling and to do away with remove function.

Signed-off-by: Pramod Gurav <pramod.gurav@smartplayin.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

diff --git a/drivers/input/touchscreen/jornada720_ts.c b/drivers/input/touchscreen/jornada720_ts.c
index 7324c5c..62af48b 100644 (file)
--- a/drivers/input/touchscreen/jornada720_ts.c
+++ b/drivers/input/touchscreen/jornada720_ts.c
@@ -104,13 +104,13 @@ static int jornada720_ts_probe(struct platform_device *pdev)
        struct input_dev *input_dev;
        int error;
 
-       jornada_ts = kzalloc(sizeof(struct jornada_ts), GFP_KERNEL);
-       input_dev = input_allocate_device();
+       jornada_ts = devm_kzalloc(&pdev->dev, sizeof(*jornada_ts), GFP_KERNEL);
+       if (!jornada_ts)
+               return -ENOMEM;
 
-       if (!jornada_ts || !input_dev) {
-               error = -ENOMEM;
-               goto fail1;
-       }
+       input_dev = devm_input_allocate_device(&pdev->dev);
+       if (!input_dev)
+               return -ENOMEM;
 
        platform_set_drvdata(pdev, jornada_ts);
 
@@ -126,36 +126,18 @@ static int jornada720_ts_probe(struct platform_device *pdev)
        input_set_abs_params(input_dev, ABS_X, 270, 3900, 0, 0);
        input_set_abs_params(input_dev, ABS_Y, 180, 3700, 0, 0);
 
-       error = request_irq(IRQ_GPIO9,
-                       jornada720_ts_interrupt,
-                       IRQF_TRIGGER_RISING,
-                       "HP7XX Touchscreen driver", pdev);
+       error = devm_request_irq(&pdev->dev, IRQ_GPIO9,
+                                jornada720_ts_interrupt,
+                                IRQF_TRIGGER_RISING,
+                                "HP7XX Touchscreen driver", pdev);
        if (error) {
-               printk(KERN_INFO "HP7XX TS : Unable to acquire irq!\n");
-               goto fail1;
+               dev_err(&pdev->dev, "HP7XX TS : Unable to acquire irq!\n");
+               return error;
        }
 
        error = input_register_device(jornada_ts->dev);
        if (error)
-               goto fail2;
-
-       return 0;
-
- fail2:
-       free_irq(IRQ_GPIO9, pdev);
- fail1:
-       input_free_device(input_dev);
-       kfree(jornada_ts);
-       return error;
-}
-
-static int jornada720_ts_remove(struct platform_device *pdev)
-{
-       struct jornada_ts *jornada_ts = platform_get_drvdata(pdev);
-
-       free_irq(IRQ_GPIO9, pdev);
-       input_unregister_device(jornada_ts->dev);
-       kfree(jornada_ts);
+               return error;
 
        return 0;
 }
@@ -165,7 +147,6 @@ MODULE_ALIAS("platform:jornada_ts");
 
 static struct platform_driver jornada720_ts_driver = {
        .probe          = jornada720_ts_probe,
-       .remove         = jornada720_ts_remove,
        .driver         = {
                .name   = "jornada_ts",
                .owner  = THIS_MODULE,