linux-kernel - Re: [PATCH] ppc: pic pmacpic_find

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Message-Id: <1167857572.6165.157.camel@localhost.localdomain>
Date:	Thu, 04 Jan 2007 07:52:52 +1100
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	Mariusz Kozlowski <m.kozlowski@...land.pl>
Cc:	linuxppc-dev@...abs.org, paulus@...ba.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ppc: pic pmacpic_find_viaint cleanup

On Tue, 2007-01-02 at 20:20 +0100, Mariusz Kozlowski wrote:
> Hello,
> 
> 	Litte rework to supress this warning:
> 
> arch/powerpc/platforms/powermac/pic.c: In function 'pmacpic_find_viaint':
> arch/powerpc/platforms/powermac/pic.c:625: warning: label 'not_found' defined but not used
> 
> Signed-off-by: Mariusz Kozlowski <m.kozlowski@...land.pl>

It's actually bogus (though the old code was too) now that we have
refcounting of device-nodes. We should do an of_node_put() on the result
of of_find_node_by_name() after we are done with it.

Can you respin with that fix ?

Ben.

>  arch/powerpc/platforms/powermac/pic.c |   13 +++++--------
>  1 file changed, 5 insertions(+), 8 deletions(-)
> 
> --- linux-2.6.20-rc2-mm1-a/arch/powerpc/platforms/powermac/pic.c	2006-12-24 05:00:32.000000000 +0100
> +++ linux-2.6.20-rc2-mm1-b/arch/powerpc/platforms/powermac/pic.c	2007-01-02 16:49:05.000000000 +0100
> @@ -609,21 +609,18 @@ unsigned long sleep_save_mask[2];
>   */
>  static int pmacpic_find_viaint(void)
>  {
> -	int viaint = -1;
> -
>  #ifdef CONFIG_ADB_PMU
>  	struct device_node *np;
>  
>  	if (pmu_get_model() != PMU_OHARE_BASED)
> -		goto not_found;
> +		return -1;
>  	np = of_find_node_by_name(NULL, "via-pmu");
>  	if (np == NULL)
> -		goto not_found;
> -	viaint = irq_of_parse_and_map(np, 0);;
> +		return -1;
> +	return irq_of_parse_and_map(np, 0);
> +#else
> +	return -1;
>  #endif /* CONFIG_ADB_PMU */
> -
> -not_found:
> -	return viaint;
>  }
>  
>  static int pmacpic_suspend(struct sys_device *sysdev, pm_message_t state)
> 
> 

-
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