linux-kernel - Re: [PATCH] swim: Add missing spinlock init

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Message-ID: <CAMuHMdUXvB8P9J26KbMXeicv0BH=gdaCHaRq-ZAP=73hn+ThMw@mail.gmail.com>
Date:	Thu, 6 Sep 2012 14:03:27 +0200
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Jean Delvare <khali@...ux-fr.org>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Finn Thain <fthain@...egraphics.com.au>
Subject: Re: [PATCH] swim: Add missing spinlock init

On Thu, Sep 6, 2012 at 1:48 PM, Jean Delvare <khali@...ux-fr.org> wrote:
> It doesn't seem this spinlock was properly initialized.

Quiet possible. There's no SMP on m68k, so all spinlock ops expand to nothing.

> Signed-off-by: Jean Delvare <khali@...ux-fr.org>
> Cc: Finn Thain <fthain@...egraphics.com.au>
> Cc: Geert Uytterhoeven <geert@...ux-m68k.org>
> ---
> I can't even build-test this.
>
>  drivers/block/swim.c |    1 +
>  1 file changed, 1 insertion(+)
>
> --- linux-3.6-rc4.orig/drivers/block/swim.c     2012-07-21 22:58:29.000000000 +0200
> +++ linux-3.6-rc4/drivers/block/swim.c  2012-09-06 13:09:26.713382169 +0200
> @@ -845,6 +845,7 @@ static int __devinit swim_floppy_init(st
>                 swd->unit[drive].swd = swd;
>         }
>
> +       spin_lock_init(&swd->lock);
>         swd->queue = blk_init_queue(do_fd_request, &swd->lock);
>         if (!swd->queue) {
>                 err = -ENOMEM;

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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