Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933318AbcLBKdH (ORCPT ); Fri, 2 Dec 2016 05:33:07 -0500 Received: from smtprelay.synopsys.com ([198.182.60.111]:35516 "EHLO smtprelay.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753678AbcLBKdE (ORCPT ); Fri, 2 Dec 2016 05:33:04 -0500 Subject: Re: [RFC PATCH] PCI: designware: add host_init() error handling To: Srinivas Kandagatla , Bjorn Helgaas , References: <1480593077-15402-1-git-send-email-srinivas.kandagatla@linaro.org> CC: Kishon Vijay Abraham I , Jingoo Han , Kukjin Kim , Krzysztof Kozlowski , Javier Martinez Canillas , Richard Zhu , Lucas Stach , "Murali Karicheri" , Minghuan Lian , Mingkai Hu , "Roy Zang" , Thomas Petazzoni , Jose Abreu , Pratyush Anand , Stanimir Varbanov , , , , , , From: Joao Pinto Message-ID: Date: Fri, 2 Dec 2016 10:32:43 +0000 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.5.0 MIME-Version: 1.0 In-Reply-To: <1480593077-15402-1-git-send-email-srinivas.kandagatla@linaro.org> Content-Type: text/plain; charset="windows-1252" Content-Transfer-Encoding: 8bit X-Originating-IP: [10.107.19.123] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1086 Lines: 28 Hi Srinivas, ?s 11:51 AM de 12/1/2016, Srinivas Kandagatla escreveu: > drivers/pci/host/pci-dra7xx.c | 4 +++- > drivers/pci/host/pci-exynos.c | 4 +++- > drivers/pci/host/pci-imx6.c | 4 +++- > drivers/pci/host/pci-keystone.c | 4 +++- > drivers/pci/host/pci-layerscape.c | 12 ++++++++---- > drivers/pci/host/pcie-armada8k.c | 4 +++- > drivers/pci/host/pcie-designware-plat.c | 4 +++- > drivers/pci/host/pcie-designware.c | 4 +++- > drivers/pci/host/pcie-designware.h | 2 +- > drivers/pci/host/pcie-qcom.c | 6 ++++-- > drivers/pci/host/pcie-spear13xx.c | 4 +++- > 11 files changed, 37 insertions(+), 15 deletions(-) > Thanks for the patch! In my opinion your idea is good but only qcom driver is able to detect failure in the specific host init routine, all others have a 'return 0' even if something not well init. I would recomend that we take this issue a bit further and add the error checking to all specific pci drivers in order to make them as robust as qcom'. Thanks, Joao