linux-kernel - Re: [PATCH] drivers/gpio: Check return value to silence warning

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Date:	Thu, 7 Aug 2014 13:45:48 +0900
From:	Alexandre Courbot <gnurou@...il.com>
To:	Nick Krause <xerofoiify@...il.com>
Cc:	Linus Walleij <linus.walleij@...aro.org>,
	"open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
	open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] drivers/gpio: Check return value to silence warning

On Thu, Aug 7, 2014 at 1:40 PM, Nick Krause <xerofoiify@...il.com> wrote:
> Check for return value to fix the following error
>
> drivers/gpio/gpio-sch311x.c: In function 'sch311x_gpio_probe':
> drivers/gpio/gpio-sch311x.c:286:18: warning: ignoring return value of
> 'gpiochip_remove', declared with attribute warn_unused_result [-Wunused-result]
>
> in the context we do not need to check but checking makes compiler happy.
> With help from kernelnewbies.

This patch is not needed: the warn_unused_result has been removed for
3.17, and gpiochip_remove will be changed to return void soon anyway.
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