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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C093EC433F5 for ; Tue, 28 Sep 2021 06:01:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id ABC4561266 for ; Tue, 28 Sep 2021 06:01:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239634AbhI1GCu (ORCPT ); Tue, 28 Sep 2021 02:02:50 -0400 Received: from mail.kernel.org ([198.145.29.99]:48756 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239086AbhI1GAx (ORCPT ); Tue, 28 Sep 2021 02:00:53 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id D8E6761378; Tue, 28 Sep 2021 05:57:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1632808634; bh=xVsdVb9zL63spLoYUIih1YQ/ViuFczmdjpKNj5k36q4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=pul9ExTpvGqfDQoOkZx/2tNXAjwFYfOG08Uy1KNnXGIAmg2U3NJL4wvdqy1SmJRyC Pt/vfHV43S7Jo2ZfbBPJVTxm1LEOWlJwd6MoYC0O+DyStF4cHlGe9xB7pghsp2WO0r AbWhNwZJ8n2CaDkV8F4IOA/aOXF7t5TI/fHQXcViXzM59aXcB2/415NjhqBq6bKg1k FeIsZHm+A4ldP1V+Yzu82V39L8mWObN1vYfPruDtvassfZj2U2uroubdLDxrtI6ZPv i/Jny1pTVIQOEJ413mK5IYI/skgWZ/d62VJPhKhb+qNE5djcEWMm5g67iP46iggWVC b0wbXsffkH29A== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Shuah Khan , Paolo Bonzini , Sasha Levin , shuah@kernel.org, kvm@vger.kernel.org, linux-kselftest@vger.kernel.org Subject: [PATCH AUTOSEL 5.4 09/11] selftests:kvm: fix get_warnings_count() ignoring fscanf() return warn Date: Tue, 28 Sep 2021 01:57:02 -0400 Message-Id: <20210928055704.172814-9-sashal@kernel.org> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20210928055704.172814-1-sashal@kernel.org> References: <20210928055704.172814-1-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 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Shuah Khan [ Upstream commit 39a71f712d8a13728febd8f3cb3f6db7e1fa7221 ] Fix get_warnings_count() to check fscanf() return value to get rid of the following warning: x86_64/mmio_warning_test.c: In function ‘get_warnings_count’: x86_64/mmio_warning_test.c:85:2: warning: ignoring return value of ‘fscanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 85 | fscanf(f, "%d", &warnings); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Shuah Khan Acked-by: Paolo Bonzini Signed-off-by: Shuah Khan Signed-off-by: Sasha Levin --- tools/testing/selftests/kvm/x86_64/mmio_warning_test.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/kvm/x86_64/mmio_warning_test.c b/tools/testing/selftests/kvm/x86_64/mmio_warning_test.c index 00bb97d76000..2cbc09aad7f6 100644 --- a/tools/testing/selftests/kvm/x86_64/mmio_warning_test.c +++ b/tools/testing/selftests/kvm/x86_64/mmio_warning_test.c @@ -82,7 +82,8 @@ int get_warnings_count(void) FILE *f; f = popen("dmesg | grep \"WARNING:\" | wc -l", "r"); - fscanf(f, "%d", &warnings); + if (fscanf(f, "%d", &warnings) < 1) + warnings = 0; fclose(f); return warnings; -- 2.33.0