linux-kernel - Re: Regulator API ignored return values

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Message-id: <17686649.119241363065111720.JavaMail.weblogic@epml02>
Date:	Tue, 12 Mar 2013 05:11:52 +0000 (GMT)
From:	Jingoo Han <jg1.han@...sung.com>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Stephen Warren <swarren@...dotorg.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Chris Ball <cjb@...top.org>, Axel Lin <axel.lin@...ics.com>,
	Jingoo Han <jg1.han@...sung.com>, Felipe Balbi <balbi@...com>,
	Dmitry Torokhov <dtor@...l.ru>
Subject: Re: Regulator API ignored return values

On Tuesday, March 12, 2013 5:44 AM, Arnd Bergmann wrote:
> 
> Hi all,
> 
> Mark Brown has added a patch to Linux-next that warns about certain regulator
> API functions being called without checking the results, which seems to have
> uncovered a number of bugs.
> 
> I've added a few people to Cc that might be interested in the reports and
> in fixing these bugs. Below you can find a list of all instances I found
> building the ARM defconfigs.
> 
> 	Arnd
> 
[...]
> /git/arm-soc/drivers/video/backlight/l4f00242t03.c: In function 'l4f00242t03_lcd_init':
> /git/arm-soc/drivers/video/backlight/l4f00242t03.c:58:18: warning: ignoring return value of
> 'regulator_enable', declared with attribute warn_unused_result [-Wunused-result]
> /git/arm-soc/drivers/video/backlight/l4f00242t03.c:61:18: warning: ignoring return value of
> 'regulator_enable', declared with attribute warn_unused_result [-Wunused-result]

Hi Arnd Bergmann,

I fixed these warnings and the patch was added to mm-tree.
(http://www.spinics.net/lists/mm-commits/msg95324.html)
Thank you for reporting :)

Best regards,
Jingoo Han