linux-kernel - Re: [PATCH 3/3] net: mediatek: check device

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Message-Id: <20160314.130645.572195280477206552.davem@davemloft.net>
Date:	Mon, 14 Mar 2016 13:06:45 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	arnd@...db.de
Cc:	nbd@...nwrt.org, blogic@...nwrt.org, matthias.bgg@...il.com,
	netdev@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3] net: mediatek: check device_reset return code

From: Arnd Bergmann <arnd@...db.de>
Date: Mon, 14 Mar 2016 15:07:12 +0100

> The device_reset() function may fail, so we have to check
> its return value, e.g. to make deferred probing work correctly.
> gcc warns about it because of the warn_unused_result attribute:
> 
> drivers/net/ethernet/mediatek/mtk_eth_soc.c: In function 'mtk_probe':
> drivers/net/ethernet/mediatek/mtk_eth_soc.c:1679:2: error: ignoring return value of 'device_reset', declared with attribute warn_unused_result [-Werror=unused-result]
> 
> This adds the trivial error check to propagate the return value
> to the generic platform device probe code.
> 
> Signed-off-by: Arnd Bergmann <arnd@...db.de>

Applied.