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 79BF2C2D0C6 for ; Wed, 11 Dec 2019 16:10:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 464C2214D8 for ; Wed, 11 Dec 2019 16:10:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576080602; bh=5C/O1Y703mdhztcjxnZWuVL7WWvHetvvVRi+sDBEqzo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=KfJIXyYl8i1FHczOOvlSbE7eU8PadLVuZ0H23zoTHorlgRVCFI66qEhxcnD+X1TCA nBpY716S+RgFnJxZhVYGvXRhIN+GHv5AvFGdDuZ34/X1mlAYigjRImb3bQSERrtSJW GOqV1gWHMyRaVx43uTrNrcUbFFwvvjhJQ8CYtTc4= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730334AbfLKQJ6 (ORCPT ); Wed, 11 Dec 2019 11:09:58 -0500 Received: from mail.kernel.org ([198.145.29.99]:32854 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731038AbfLKPMD (ORCPT ); Wed, 11 Dec 2019 10:12:03 -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 0906B222C4; Wed, 11 Dec 2019 15:12:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576077122; bh=5C/O1Y703mdhztcjxnZWuVL7WWvHetvvVRi+sDBEqzo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=bleo0jiUuV0BqDC9nLBQbczrKREJJMl+OAML+hKAC6hTq1kCXFYkdY5fBXLn1105o XpW/d8fgMDQuVv2cZfYLXgV6LOYP2SXnA7PcQPu4cci1E2h7m6jI7Sg6q9mSvMWlCk YG91ZaZIWYTOJMmw6SrlkUDm7Bl0HMZM40CUsZQY= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Srinivas Pandruvada , Andy Shevchenko , Sasha Levin Subject: [PATCH AUTOSEL 5.4 011/134] tools/power/x86/intel-speed-select: Remove warning for unused result Date: Wed, 11 Dec 2019 10:09:47 -0500 Message-Id: <20191211151150.19073-11-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191211151150.19073-1-sashal@kernel.org> References: <20191211151150.19073-1-sashal@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Srinivas Pandruvada [ Upstream commit abd120e3bdf3dd72ba1ed9ac077a861e0e3dc43a ] Fix warning for: isst-config.c: In function ‘set_cpu_online_offline’: isst-config.c:221:3: warning: ignoring return value of ‘write’, declared with attribute warn_unused_result [-Wunused-result] write(fd, "1\n", 2); Signed-off-by: Srinivas Pandruvada Signed-off-by: Andy Shevchenko Signed-off-by: Sasha Levin --- tools/power/x86/intel-speed-select/isst-config.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/tools/power/x86/intel-speed-select/isst-config.c b/tools/power/x86/intel-speed-select/isst-config.c index 2a9890c8395a4..21fcfe621d3aa 100644 --- a/tools/power/x86/intel-speed-select/isst-config.c +++ b/tools/power/x86/intel-speed-select/isst-config.c @@ -169,7 +169,7 @@ int get_topo_max_cpus(void) static void set_cpu_online_offline(int cpu, int state) { char buffer[128]; - int fd; + int fd, ret; snprintf(buffer, sizeof(buffer), "/sys/devices/system/cpu/cpu%d/online", cpu); @@ -179,9 +179,12 @@ static void set_cpu_online_offline(int cpu, int state) err(-1, "%s open failed", buffer); if (state) - write(fd, "1\n", 2); + ret = write(fd, "1\n", 2); else - write(fd, "0\n", 2); + ret = write(fd, "0\n", 2); + + if (ret == -1) + perror("Online/Offline: Operation failed\n"); close(fd); } -- 2.20.1