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=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham 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 6CDB5C43387 for ; Wed, 19 Dec 2018 15:29:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3BE30218D0 for ; Wed, 19 Dec 2018 15:29:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730215AbeLSP3z (ORCPT ); Wed, 19 Dec 2018 10:29:55 -0500 Received: from youngberry.canonical.com ([91.189.89.112]:58987 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728895AbeLSP3y (ORCPT ); Wed, 19 Dec 2018 10:29:54 -0500 Received: from 1.general.cking.uk.vpn ([10.172.193.212] helo=localhost) by youngberry.canonical.com with esmtpsa (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.76) (envelope-from ) id 1gZdnC-0004Ok-0b; Wed, 19 Dec 2018 15:29:50 +0000 From: Colin King To: Ben Skeggs , David Airlie , Daniel Vetter , dri-devel@lists.freedesktop.org, nouveau@lists.freedesktop.org Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] drm/nouveau/pmu: don't print reply values if exec is false Date: Wed, 19 Dec 2018 15:29:49 +0000 Message-Id: <20181219152949.14669-1-colin.king@canonical.com> X-Mailer: git-send-email 2.19.1 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Colin Ian King Currently the uninitialized values in the array reply are printed out when exec is false and nvkm_pmu_send has not updated the array. Avoid confusion by only dumping out these values if they have been actually updated. Detected by CoverityScan, CID#1271291 ("Uninitialized scaler variable") Fixes: ebb58dc2ef8c ("drm/nouveau/pmu: rename from pwr (no binary change)") Signed-off-by: Colin Ian King --- drivers/gpu/drm/nouveau/nvkm/subdev/pmu/memx.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/memx.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/memx.c index 11b28b086a06..7b052879af72 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/memx.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/memx.c @@ -88,10 +88,10 @@ nvkm_memx_fini(struct nvkm_memx **pmemx, bool exec) if (exec) { nvkm_pmu_send(pmu, reply, PROC_MEMX, MEMX_MSG_EXEC, memx->base, finish); + nvkm_debug(subdev, "Exec took %uns, PMU_IN %08x\n", + reply[0], reply[1]); } - nvkm_debug(subdev, "Exec took %uns, PMU_IN %08x\n", - reply[0], reply[1]); kfree(memx); return 0; } -- 2.19.1