Re: [PATCH][bugfix] usb/gadget: configfs: keep a function if it is not successfully added

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On 08/08/2013 09:43 AM, Andrzej Pietrasiewicz wrote:
> diff --git a/drivers/usb/gadget/configfs.c b/drivers/usb/gadget/configfs.c
> index c5d8f81..8cb5006 100644
> --- a/drivers/usb/gadget/configfs.c
> +++ b/drivers/usb/gadget/configfs.c
> @@ -866,8 +866,10 @@ static int configfs_composite_bind(struct usb_gadget *gadget,
>  		list_for_each_entry_safe(f, tmp, &cfg->func_list, list) {
>  			list_del(&f->list);
>  			ret = usb_add_function(c, f);
> -			if (ret)
> +			if (ret) {
> +				list_add(&f->list, &cfg->func_list);
>  				goto err_purge_funcs;
> +			}

Since when is this broken? I remember it used to work and
usb_add_function() cleaned up after itself in error case.

>  		}
>  		usb_ep_autoconfig_reset(cdev->gadget);
>  	}
> 

Sebastian
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