linux-kernel - Re: [PATCH] alsa: use subsys_initcall for sound core instead of module

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Message-ID: <s5h63765wm0.wl%tiwai@suse.de>
Date:	Wed, 13 Jan 2010 07:48:07 +0100
From:	Takashi Iwai <tiwai@...e.de>
To:	Thadeu Lima de Souza Cascardo <cascardo@...oscopio.com>
Cc:	alsa-devel@...a-project.org, ibm-acpi@....eng.br,
	Jaroslav Kysela <perex@...ex.cz>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] alsa: use subsys_initcall for sound core instead of module_init

At Tue, 12 Jan 2010 20:20:39 -0200,
Thadeu Lima de Souza Cascardo wrote:
> 
> This is needed for built-in drivers which are built before the sound directory,
> like thinkpad_acpi.
> 
> Otherwise, registering a card fails.

Oh well, this kind of problem hits again.

I don't remember why subsys_init() wasn't taken before...  Maybe some
dependency between sound and V4L or so.  But, it's worth to check again.

I'll apply this after some testing.


thanks,

Takashi

> 
> Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@...oscopio.com>
> ---
>  sound/core/sound.c |    4 ++--
>  sound/sound_core.c |    2 +-
>  2 files changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/sound/core/sound.c b/sound/core/sound.c
> index 7872a02..563d196 100644
> --- a/sound/core/sound.c
> +++ b/sound/core/sound.c
> @@ -468,5 +468,5 @@ static void __exit alsa_sound_exit(void)
>  	unregister_chrdev(major, "alsa");
>  }
>  
> -module_init(alsa_sound_init)
> -module_exit(alsa_sound_exit)
> +subsys_initcall(alsa_sound_init);
> +module_exit(alsa_sound_exit);
> diff --git a/sound/sound_core.c b/sound/sound_core.c
> index dbca7c9..7c2d677 100644
> --- a/sound/sound_core.c
> +++ b/sound/sound_core.c
> @@ -61,7 +61,7 @@ static void __exit cleanup_soundcore(void)
>  	class_destroy(sound_class);
>  }
>  
> -module_init(init_soundcore);
> +subsys_initcall(init_soundcore);
>  module_exit(cleanup_soundcore);
>  
>  
> -- 
> 1.6.6
> 
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