linux-kernel - Re: [BUGFIX] PM, domain, Fix link checking when add subdomain

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Message-Id: <201205072146.10086.rjw@sisk.pl>
Date:	Mon, 7 May 2012 21:46:09 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Huang Ying <ying.huang@...el.com>
Cc:	ming.m.lin@...el.com, linux-kernel@...r.kernel.org,
	linux-pm@...r.kernel.org
Subject: Re: [BUGFIX] PM, domain, Fix link checking when add subdomain

On Monday, May 07, 2012, Huang Ying wrote:
> Current pm_genpd_add_subdomain() will allow duplicated link between
> master and slave domain.  This patch fixed it.
> 
> Because when current pm_genpd_add_subdomain() checks whether the link
> between the master and slave generic PM domain already exists,
> slave_links instead of master_links of master domain is used.
> 
> Signed-off-by: Huang Ying <ying.huang@...el.com>

Thanks for the fix, applied to linux-pm/linux-next.

Thanks,
Rafael


> ---
>  drivers/base/power/domain.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> --- a/drivers/base/power/domain.c
> +++ b/drivers/base/power/domain.c
> @@ -1378,7 +1378,7 @@ int pm_genpd_add_subdomain(struct generi
>  		goto out;
>  	}
>  
> -	list_for_each_entry(link, &genpd->slave_links, slave_node) {
> +	list_for_each_entry(link, &genpd->master_links, master_node) {
>  		if (link->slave == subdomain && link->master == genpd) {
>  			ret = -EINVAL;
>  			goto out;
> --
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> 

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