From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH 3/3] net: mediatek: check device_reset return code Date: Mon, 14 Mar 2016 13:06:45 -0400 (EDT) Message-ID: <20160314.130645.572195280477206552.davem@davemloft.net> References: <1457964435-2945038-1-git-send-email-arnd@arndb.de> <1457964435-2945038-3-git-send-email-arnd@arndb.de> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: nbd@openwrt.org, blogic@openwrt.org, matthias.bgg@gmail.com, netdev@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org To: arnd@arndb.de Return-path: In-Reply-To: <1457964435-2945038-3-git-send-email-arnd@arndb.de> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org From: Arnd Bergmann 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 Applied.