linux-kernel - Re: [PATCH] pinctrl: mediatek: fix check on EINT

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Date:   Wed, 26 Sep 2018 09:42:00 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Colin King <colin.king@...onical.com>
Cc:     Matthias Brugger <matthias.bgg@...il.com>,
        Sean Wang <sean.wang@...iatek.com>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        "moderated list:ARM/Mediatek SoC support" 
        <linux-mediatek@...ts.infradead.org>,
        kernel-janitors@...r.kernel.org,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] pinctrl: mediatek: fix check on EINT_NA comparison

On Tue, Sep 25, 2018 at 11:55 AM Colin King <colin.king@...onical.com> wrote:

> From: Colin Ian King <colin.king@...onical.com>
>
> Currently, the check on desc->eint.eint_n == EINT_NA is always false
> because this is comparing a u16 to -1 which can never be true.  Fix
> this by casting EINT_NA to u16.
>
> Detected by CoverityScan, CID#1473610 ("Operands don't affect result")
>
> Fixes: fb5fa8dc151b ("pinctrl: mediatek: extend struct mtk_pin_desc to pinctrl-mtk-common-v2.c")
> Signed-off-by: Colin Ian King <colin.king@...onical.com>

Patch applied.

Yours,
Linus Walleij