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Message-ID: <s5hr6068rdp.wl%tiwai@suse.de>
Date: Mon, 06 Apr 2009 04:09:38 +0200
From: Takashi Iwai <tiwai@...e.de>
To: Uwe Kleine-König
<u.kleine-koenig@...gutronix.de>
Cc: linux-kernel@...r.kernel.org,
Andrew Morton <akpm@...ux-foundation.org>,
Takashi Iwai <tiwai@...e.de>, Jaroslav Kysela <perex@...ex.cz>,
Johannes Berg <johannes@...solutions.net>,
Rene Herman <rene.herman@...access.nl>
Subject: Re: [PATCH 49/58] move snd_powermac's probe function to .devinit.text
At Sat, 28 Mar 2009 00:27:10 +0100,
Uwe Kleine-König wrote:
>
> A pointer to snd_pmac_probe is passed to the core via
> platform_driver_register and so the function must not disappear when the
> .init sections are discarded. Otherwise (when having HOTPLUG=y)
> unbinding and binding a device to the driver via sysfs will result in an
> oops as does a device being registered late.
>
> An alternative to this patch is using platform_driver_probe instead of
> platform_driver_register plus removing the pointer to the probe function
> from the struct platform_driver.
>
> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
> Cc: Takashi Iwai <tiwai@...e.de>
> Cc: Jaroslav Kysela <perex@...ex.cz>
> Cc: Johannes Berg <johannes@...solutions.net>
> Cc: Rene Herman <rene.herman@...access.nl>
> Cc: Andrew Morton <akpm@...ux-foundation.org>
Applied now to sound git tree. Thanks.
Takashi
> ---
> sound/ppc/powermac.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/sound/ppc/powermac.c b/sound/ppc/powermac.c
> index 5a92906..a2b69b8 100644
> --- a/sound/ppc/powermac.c
> +++ b/sound/ppc/powermac.c
> @@ -51,7 +51,7 @@ static struct platform_device *device;
> /*
> */
>
> -static int __init snd_pmac_probe(struct platform_device *devptr)
> +static int __devinit snd_pmac_probe(struct platform_device *devptr)
> {
> struct snd_card *card;
> struct snd_pmac *chip;
> --
> 1.6.2
>
--
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