linux-kernel - Re: [PATCH][next] pinctrl: actions: fix missing break in PIN_CONFIG_DRIVE

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Date:   Mon, 30 Apr 2018 14:19:54 +0100
From:   Colin Ian King <colin.king@...onical.com>
To:     Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        linux-gpio@...r.kernel.org, kernel-janitors@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH][next] pinctrl: actions: fix missing break in
 PIN_CONFIG_DRIVE_STRENGTH case.

On 30/04/18 14:19, Manivannan Sadhasivam wrote:
> Hi Colin,
> 
> On Mon, Apr 30, 2018 at 02:14:20PM +0100, Colin King wrote:
>> From: Colin Ian King <colin.king@...onical.com>
>>
>> There is a missing break in case PIN_CONFIG_DRIVE_STRENGTH leading to
>> a fall-through to the PIN_CONFIG_SLEW_RATE case that performs different
>> checks against *arg. This looks like an unintentional missing break so
>> add in the break.
>>
> 
> Yes, break has been left out by mistake. Thanks for fixing!

I've noticed another missing break, I'll send a V2.

Colin
> 
>> Detected by CoverityScan, CID#1468459 ("Missing break in switch")
>>
>> Fixes: 513d7a2f7e0f ("pinctrl: actions: Add Actions S900 pinctrl driver")
>> Signed-off-by: Colin Ian King <colin.king@...onical.com>
> 
> Acked-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org> 
> 
> Thanks,
> Mani
> 
>> ---
>>  drivers/pinctrl/actions/pinctrl-owl.c | 1 +
>>  1 file changed, 1 insertion(+)
>>
>> diff --git a/drivers/pinctrl/actions/pinctrl-owl.c b/drivers/pinctrl/actions/pinctrl-owl.c
>> index 928b40f71a3c..d15abb97821e 100644
>> --- a/drivers/pinctrl/actions/pinctrl-owl.c
>> +++ b/drivers/pinctrl/actions/pinctrl-owl.c
>> @@ -441,6 +441,7 @@ static int owl_group_pinconf_val2arg(const struct owl_pingroup *g,
>>  		default:
>>  			return -EINVAL;
>>  		}
>> +		break;
>>  	case PIN_CONFIG_SLEW_RATE:
>>  		if (*arg)
>>  			*arg = 1;
>> -- 
>> 2.17.0
>>