[media] drivers/media/radio/radio-si4713.c: use devm_ functions

The various devm_ functions allocate memory that is released when a driver
detaches.  This patch uses these functions for data that is allocated in
the probe function of a platform device and is only freed in the remove
function.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/radio/radio-si4713.c b/drivers/media/radio/radio-si4713.c
index c54210c7fef90783200ccec467230fa6a7f3dc69..5f366d16be260067ccd5d9f18cf53cfcbd012422 100644 (file)
--- a/drivers/media/radio/radio-si4713.c
+++ b/drivers/media/radio/radio-si4713.c
@@ -268,7 +268,7 @@ static int radio_si4713_pdriver_probe(struct platform_device *pdev)
                goto exit;
        }
 
-       rsdev = kzalloc(sizeof *rsdev, GFP_KERNEL);
+       rsdev = devm_kzalloc(&pdev->dev, sizeof(*rsdev), GFP_KERNEL);
        if (!rsdev) {
                dev_err(&pdev->dev, "Failed to alloc video device.\n");
                rval = -ENOMEM;
@@ -278,7 +278,7 @@ static int radio_si4713_pdriver_probe(struct platform_device *pdev)
        rval = v4l2_device_register(&pdev->dev, &rsdev->v4l2_dev);
        if (rval) {
                dev_err(&pdev->dev, "Failed to register v4l2 device.\n");
-               goto free_rsdev;
+               goto exit;
        }
 
        adapter = i2c_get_adapter(pdata->i2c_bus);
@@ -322,8 +322,6 @@ put_adapter:
        i2c_put_adapter(adapter);
 unregister_v4l2_dev:
        v4l2_device_unregister(&rsdev->v4l2_dev);
-free_rsdev:
-       kfree(rsdev);
 exit:
        return rval;
 }
@@ -342,7 +340,6 @@ static int __exit radio_si4713_pdriver_remove(struct platform_device *pdev)
        video_unregister_device(rsdev->radio_dev);
        i2c_put_adapter(client->adapter);
        v4l2_device_unregister(&rsdev->v4l2_dev);
-       kfree(rsdev);
 
        return 0;
 }