Re: [PATCH 15/41] usb: gadget: s3c2410_udc: use platform ids instead

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On Tue, Jun 28, 2011 at 04:34:00PM +0300, Felipe Balbi wrote:
> From: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
> 
> This also fixes the error path: If the second device fails to register
> we never remove the first one.
> This is compile-tested only. I don't see any difference between those
> two. Maybe we should just use one name instead?
> 
> Cc: Ben Dooks <ben-linux@xxxxxxxxx>
> Cc: Kukjin Kim <kgene.kim@xxxxxxxxxxx>
> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
> Signed-off-by: Felipe Balbi <balbi@xxxxxx>
> ---
>  drivers/usb/gadget/s3c2410_udc.c |   29 +++++++++--------------------
>  1 files changed, 9 insertions(+), 20 deletions(-)
> 
> diff --git a/drivers/usb/gadget/s3c2410_udc.c b/drivers/usb/gadget/s3c2410_udc.c
> index 1c19cd3..394c1a3 100644
> --- a/drivers/usb/gadget/s3c2410_udc.c
> +++ b/drivers/usb/gadget/s3c2410_udc.c
> @@ -2057,26 +2057,22 @@ static int s3c2410_udc_resume(struct platform_device *pdev)
>  #define s3c2410_udc_resume	NULL
>  #endif
>  
> -static struct platform_driver udc_driver_2410 = {
> -	.driver		= {
> -		.name	= "s3c2410-usbgadget",
> -		.owner	= THIS_MODULE,
> -	},
> -	.probe		= s3c2410_udc_probe,
> -	.remove		= s3c2410_udc_remove,
> -	.suspend	= s3c2410_udc_suspend,
> -	.resume		= s3c2410_udc_resume,
> +static const struct platform_device_id s3c_udc_ids[] = {
> +	{ "s3c2410-usbgadget", },
> +	{ "s3c2440-usbgadget", },
>  };
> +MODULE_DEVICE_TABLE(platform, s3c_udc_ids);
>  
> -static struct platform_driver udc_driver_2440 = {
> +static struct platform_driver udc_driver_24x0 = {
>  	.driver		= {
> -		.name	= "s3c2440-usbgadget",
> +		.name	= "s3c24x0-usbgadget",
>  		.owner	= THIS_MODULE,
>  	},
>  	.probe		= s3c2410_udc_probe,
>  	.remove		= s3c2410_udc_remove,
>  	.suspend	= s3c2410_udc_suspend,
>  	.resume		= s3c2410_udc_resume,
> +	.id_table	= s3c_udc_ids,
>  };
>  
>  static int __init udc_init(void)
> @@ -2092,11 +2088,7 @@ static int __init udc_init(void)
>  		s3c2410_udc_debugfs_root = NULL;
>  	}
>  
> -	retval = platform_driver_register(&udc_driver_2410);
> -	if (retval)
> -		goto err;
> -
> -	retval = platform_driver_register(&udc_driver_2440);
> +	retval = platform_driver_register(&udc_driver_24x0);
>  	if (retval)
>  		goto err;
>  
> @@ -2109,8 +2101,7 @@ err:
>  
>  static void __exit udc_exit(void)
>  {
> -	platform_driver_unregister(&udc_driver_2410);
> -	platform_driver_unregister(&udc_driver_2440);
> +	platform_driver_unregister(&udc_driver_24x0);
>  	debugfs_remove(s3c2410_udc_debugfs_root);
>  }
>  
> @@ -2121,5 +2112,3 @@ MODULE_AUTHOR(DRIVER_AUTHOR);
>  MODULE_DESCRIPTION(DRIVER_DESC);
>  MODULE_VERSION(DRIVER_VERSION);
>  MODULE_LICENSE("GPL");
> -MODULE_ALIAS("platform:s3c2410-usbgadget");
> -MODULE_ALIAS("platform:s3c2440-usbgadget");

You just dropped the alias here, doesn't that break things?

thanks,

greg k-h
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