Re: [PATCH] usb: gadget: dummy: do not call pullup() on udc_stop()

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On Wed, 18 Apr 2012, Felipe Balbi wrote:

> pullup() is already called properly by udc-core.c and
> there's no need to call it from udc_stop(), in fact that
> will cause issues.
> 
> Reported-by: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>
> Signed-off-by: Felipe Balbi <balbi@xxxxxx>
> ---
>  drivers/usb/gadget/dummy_hcd.c |    1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c
> index a6dfd21..170cbe8 100644
> --- a/drivers/usb/gadget/dummy_hcd.c
> +++ b/drivers/usb/gadget/dummy_hcd.c
> @@ -927,7 +927,6 @@ static int dummy_udc_stop(struct usb_gadget *g,
>  
>  	dum->driver = NULL;
>  
> -	dummy_pullup(&dum->gadget, 0);
>  	return 0;
>  }

Acked-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>

Although Alexander's problem was not caused by this but rather by the 
non-updated order of the calls in usb_gadget_remove_driver().

Alan Stern

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