linux-kernel - Re: [PATCH v2] Documentation/watchdog: check return value for magic close

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Date:	Fri, 22 Jul 2016 16:30:10 -0500
From:	Timur Tabi <timur@...eaurora.org>
To:	Arnd Bergmann <arnd@...db.de>, Wim Van Sebroeck <wim@...ana.be>
Cc:	Guenter Roeck <linux@...ck-us.net>,
	Jonathan Corbet <corbet@....net>,
	linux-watchdog@...r.kernel.org, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] Documentation/watchdog: check return value for magic
 close

Arnd Bergmann wrote:
> A recent commit added a write to the watchdog test code for doing the "magic
> close", but that caused a compile-time warning:
>
> Documentation/watchdog/src/watchdog-test.c: In function ‘main’:
> Documentation/watchdog/src/watchdog-test.c:94:5: warning: ignoring return value of ‘write’, declared with attribute warn_unused_result [-Wunused-result]
>
> This changes the code to print a runtime warning if the write fails.
>
> Fixes: 5a2d3de19602 ("Documentation/watchdog: add support for magic close to watchdog-test")
> Signed-off-by: Arnd Bergmann<arnd@...db.de>

Acked-by: Timur Tabi <timur@...eaurora.org>

Thanks for this patch.  I don't know why I didn't notice the warnings 
before.

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