linux-kernel - Re: [PATCH 1/2] drivers: usb: gadget: udc: add missing break in switch

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Date:   Wed, 08 Feb 2017 11:23:27 +0200
From:   Felipe Balbi <balbi@...nel.org>
To:     "Gustavo A. R. Silva" <garsilva@...eddedor.com>,
        gregkh@...uxfoundation.org, bhumirks@...il.com, mina86@...a86.com
Cc:     linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] drivers: usb: gadget: udc: add missing break in switch


Hi,

"Gustavo A. R. Silva" <garsilva@...eddedor.com> writes:
> Add missing break in switch.
>
> Addresses-Coverity-ID: 201385
> Signed-off-by: Gustavo A. R. Silva <garsilva@...eddedor.com>
> ---
>  drivers/usb/gadget/udc/mv_udc_core.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/usb/gadget/udc/mv_udc_core.c b/drivers/usb/gadget/udc/mv_udc_core.c
> index 27ebb0d..56b3574 100644
> --- a/drivers/usb/gadget/udc/mv_udc_core.c
> +++ b/drivers/usb/gadget/udc/mv_udc_core.c
> @@ -489,6 +489,7 @@ static int mv_ep_enable(struct usb_ep *_ep,
>  		break;
>  	case USB_ENDPOINT_XFER_CONTROL:
>  		ios = 1;
> +		break;

are you SURE this is supposed to have this break statement? What if we
want to initialize mult to 0 *also* for control endpoints? How did you
test this? Do you have access to Marvel's documentation for this
controller?

-- 
balbi

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