linux-kernel - Re: [PATCH v2 2/4] Input: omap4-keypad - Fix handling of platform_get

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Message-ID: <CAKdAkRQeh7R-AeiPS3C3JmYaK2MSAvtgg=0YxBj9id1otjAGig@mail.gmail.com>
Date:   Tue, 15 Sep 2020 23:25:52 -0700
From:   Dmitry Torokhov <dmitry.torokhov@...il.com>
To:     Krzysztof Kozlowski <krzk@...nel.org>
Cc:     Maxime Ripard <mripard@...nel.org>, Chen-Yu Tsai <wens@...e.org>,
        "linux-input@...r.kernel.org" <linux-input@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v2 2/4] Input: omap4-keypad - Fix handling of
 platform_get_irq() error

On Tue, Sep 15, 2020 at 11:06 PM Krzysztof Kozlowski <krzk@...nel.org> wrote:
>
> On Wed, 16 Sep 2020 at 02:54, Dmitry Torokhov <dmitry.torokhov@...il.com> wrote:
> >
> > On Fri, Aug 28, 2020 at 04:57:42PM +0200, Krzysztof Kozlowski wrote:
> > > platform_get_irq() returns -ERRNO on error.  In such case comparison
> > > to 0 would pass the check.
> > >
> > > Fixes: f3a1ba60dbdb ("Input: omap4-keypad - use platform device helpers")
> > > Signed-off-by: Krzysztof Kozlowski <krzk@...nel.org>
> > >
> > > ---
> > >
> > > Changes since v1:
> > > 1. None
> > > ---
> > >  drivers/input/keyboard/omap4-keypad.c | 6 ++----
> > >  1 file changed, 2 insertions(+), 4 deletions(-)
> > >
> > > diff --git a/drivers/input/keyboard/omap4-keypad.c b/drivers/input/keyboard/omap4-keypad.c
> > > index 94c94d7f5155..b075f1af0305 100644
> > > --- a/drivers/input/keyboard/omap4-keypad.c
> > > +++ b/drivers/input/keyboard/omap4-keypad.c
> > > @@ -240,10 +240,8 @@ static int omap4_keypad_probe(struct platform_device *pdev)
> > >       }
> > >
> > >       irq = platform_get_irq(pdev, 0);
> > > -     if (!irq) {
> > > -             dev_err(&pdev->dev, "no keyboard irq assigned\n");
> > > -             return -EINVAL;
> > > -     }
> > > +     if (irq < 0)
> > > +             return -irq;
> >
> > You must have meant just "irq", right?
>
> Damn it, of course. I'll send a v2 for this.

It's fine, I can fix it up locally.

Thanks.

-- 
Dmitry