From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9D344C432C0 for ; Fri, 22 Nov 2019 06:02:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 740E420715 for ; Fri, 22 Nov 2019 06:02:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1574402550; bh=TPBoOGY1A57r86SWMy5IOTPBBr3mVxs/0C9ZC3nG3N8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=L5/89WjDmCOzV97vOx55N+9VeDkpTebUrlziH2d/7HbfAdi8Pzqe5cAmZFCmGIHhz 0ErGjMd5SAk5dANxiD53bG2OeRBoPXGP8qJZgqNAM0BUjmAxMn9IH8aiECYi5nr7DN 24eovF8QE6V2h6uSklclfzXFR0s3e4y7AoHOvc4Q= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729732AbfKVGC3 (ORCPT ); Fri, 22 Nov 2019 01:02:29 -0500 Received: from mail.kernel.org ([198.145.29.99]:41042 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729714AbfKVGC0 (ORCPT ); Fri, 22 Nov 2019 01:02:26 -0500 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 525B320659; Fri, 22 Nov 2019 06:02:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1574402545; bh=TPBoOGY1A57r86SWMy5IOTPBBr3mVxs/0C9ZC3nG3N8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=0gpQXVMG5M3L5DzMbyyK7qB8eMZRPkNC2rZJrtFLZXzparX80KcKTZro1gkDXK9Jr rgUqo18lhoSZpGSPq029kt6J40u8dEb8XWZO0PYkjKEEc9HIqrTtHgYsLAB+szqQK2 bdU6s1ll3FYq6V2B2iVKY08Ttgi3t5rCrmpOZGbg= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Alexey Kardashevskiy , Sam Bobroff , Michael Ellerman , Sasha Levin , linuxppc-dev@lists.ozlabs.org Subject: [PATCH AUTOSEL 4.9 51/91] powerpc/powernv/eeh/npu: Fix uninitialized variables in opal_pci_eeh_freeze_status Date: Fri, 22 Nov 2019 01:00:49 -0500 Message-Id: <20191122060129.4239-50-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191122060129.4239-1-sashal@kernel.org> References: <20191122060129.4239-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Alexey Kardashevskiy [ Upstream commit c20577014f85f36d4e137d3d52a1f61225b4a3d2 ] The current implementation of the OPAL_PCI_EEH_FREEZE_STATUS call in skiboot's NPU driver does not touch the pci_error_type parameter so it might have garbage but the powernv code analyzes it nevertheless. This initializes pcierr and fstate to zero in all call sites. Signed-off-by: Alexey Kardashevskiy Reviewed-by: Sam Bobroff Signed-off-by: Michael Ellerman Signed-off-by: Sasha Levin --- arch/powerpc/platforms/powernv/eeh-powernv.c | 8 ++++---- arch/powerpc/platforms/powernv/pci-ioda.c | 4 ++-- arch/powerpc/platforms/powernv/pci.c | 4 ++-- 3 files changed, 8 insertions(+), 8 deletions(-) diff --git a/arch/powerpc/platforms/powernv/eeh-powernv.c b/arch/powerpc/platforms/powernv/eeh-powernv.c index 2354ea51e8714..6189c4cf56c3f 100644 --- a/arch/powerpc/platforms/powernv/eeh-powernv.c +++ b/arch/powerpc/platforms/powernv/eeh-powernv.c @@ -546,8 +546,8 @@ static void pnv_eeh_get_phb_diag(struct eeh_pe *pe) static int pnv_eeh_get_phb_state(struct eeh_pe *pe) { struct pnv_phb *phb = pe->phb->private_data; - u8 fstate; - __be16 pcierr; + u8 fstate = 0; + __be16 pcierr = 0; s64 rc; int result = 0; @@ -585,8 +585,8 @@ static int pnv_eeh_get_phb_state(struct eeh_pe *pe) static int pnv_eeh_get_pe_state(struct eeh_pe *pe) { struct pnv_phb *phb = pe->phb->private_data; - u8 fstate; - __be16 pcierr; + u8 fstate = 0; + __be16 pcierr = 0; s64 rc; int result; diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c index 8015e40bc7ee4..3ec673b4ca6ce 100644 --- a/arch/powerpc/platforms/powernv/pci-ioda.c +++ b/arch/powerpc/platforms/powernv/pci-ioda.c @@ -599,8 +599,8 @@ static int pnv_ioda_unfreeze_pe(struct pnv_phb *phb, int pe_no, int opt) static int pnv_ioda_get_pe_state(struct pnv_phb *phb, int pe_no) { struct pnv_ioda_pe *slave, *pe; - u8 fstate, state; - __be16 pcierr; + u8 fstate = 0, state; + __be16 pcierr = 0; s64 rc; /* Sanity check on PE number */ diff --git a/arch/powerpc/platforms/powernv/pci.c b/arch/powerpc/platforms/powernv/pci.c index db7b8020f68ef..98cc8ba07c233 100644 --- a/arch/powerpc/platforms/powernv/pci.c +++ b/arch/powerpc/platforms/powernv/pci.c @@ -482,8 +482,8 @@ static void pnv_pci_handle_eeh_config(struct pnv_phb *phb, u32 pe_no) static void pnv_pci_config_check_eeh(struct pci_dn *pdn) { struct pnv_phb *phb = pdn->phb->private_data; - u8 fstate; - __be16 pcierr; + u8 fstate = 0; + __be16 pcierr = 0; unsigned int pe_no; s64 rc; -- 2.20.1