linux-kernel - Re: [PATCH] staging: comedi: das800: fix request

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Date:   Thu, 18 Mar 2021 23:48:41 -0400
From:   Tong Zhang <ztong0001@...il.com>
To:     Ian Abbott <abbotti@....co.uk>
Cc:     H Hartley Sweeten <hsweeten@...ionengravers.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Alexander A. Klimov" <grandmaster@...klimov.de>,
        devel@...verdev.osuosl.org,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] staging: comedi: das800: fix request_irq() warn

Thank you all,
I fixed the commit log and resent as v2.
Thanks,
- Tong

On Wed, Mar 17, 2021 at 8:48 AM Ian Abbott <abbotti@....co.uk> wrote:
>
> On 16/03/2021 22:42, Tong Zhang wrote:
> > request_irq() wont accept a name which contains slash so we need to
> > repalce it with something else -- otherwise it will trigger a warning
> > and the entry in /proc/irq/ will not be created
> > since the .name might be used by userspace and we don't want to break
> > userspace, so we are changing the parameters passed to request_irq()
> >
> > Suggested-by: Ian Abbott <abbotti@....co.uk>
> > Signed-off-by: Tong Zhang <ztong0001@...il.com>
> > ---
> >   drivers/staging/comedi/drivers/das800.c | 2 +-
> >   1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/staging/comedi/drivers/das800.c b/drivers/staging/comedi/drivers/das800.c
> > index 2881808d6606..bc08324f422f 100644
> > --- a/drivers/staging/comedi/drivers/das800.c
> > +++ b/drivers/staging/comedi/drivers/das800.c
> > @@ -668,7 +668,7 @@ static int das800_attach(struct comedi_device *dev, struct comedi_devconfig *it)
> >       dev->board_name = board->name;
> >
> >       if (irq > 1 && irq <= 7) {
> > -             ret = request_irq(irq, das800_interrupt, 0, dev->board_name,
> > +             ret = request_irq(irq, das800_interrupt, 0, "das800",
> >                                 dev);
> >               if (ret == 0)
> >                       dev->irq = irq;
> >
>
> Looks good (apart from the minor spelling niggle spotted by Dan
> Carpenter), thanks!
>
> Reviewed-by: Ian Abbott <abbotti@....co.uk>
>
> --
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