From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EB3AC160783; Mon, 27 May 2024 19:16:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716837388; cv=none; b=VRyMjFFIFjBAqdTEn7R3t94c381joy+hPH0BSVLbB6jR4m+GM+CJm7lBDQxKrXtUcY7tmfENZCH2WgeeSLyFTBWZ14rety62Q8jjRUAHnRgten4zA8uDXNxy6hGgXdEfM8/IjlOUPdGajFTqL+3G5Govxv5l8mYRpL8ud+UnsXY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716837388; c=relaxed/simple; bh=m1T5gtK9OdVuzj8i/VI5/lUN5kQRje37I8Kdn75su5I=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=rv5WWf9rnHWSjlgyMpQxi6RNecWdQ1paZLn42UDpdAi5X7BEL9u/W/k/DFnhKayN9GlLNn43jS/w/g1Vk/5lgiOnXoBc9HLNYumFS0ImMzczKRjBiZMezWiyOf0Ig4SJIBuIdsxdaTMdDMmtMzIhot015VZFWjsrtNV9LDMwrd4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=qRAJz7Ld; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="qRAJz7Ld" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 83918C2BBFC; Mon, 27 May 2024 19:16:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1716837387; bh=m1T5gtK9OdVuzj8i/VI5/lUN5kQRje37I8Kdn75su5I=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=qRAJz7LdHqFONxJS+99qVjW/9kbJ0inyhVm79eG11ZrRc13XvIMyHy7yL0/dZO7Lm k0Re+pXK2Uz1HRW4xG4Y8SJLKHy4N0aPdR9xuI2kYx5Ts+9j5kG7dolf1ygd3b0h4e TZib06CUNRr4ru3pXNIZldUiS3dqJLoFr56KidLA= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, SeongJae Park , Jonathan Corbet , Shuah Khan , Andrew Morton , Sasha Levin Subject: [PATCH 6.9 404/427] selftests/damon/_damon_sysfs: check errors from nr_schemes file reads Date: Mon, 27 May 2024 20:57:31 +0200 Message-ID: <20240527185635.217046153@linuxfoundation.org> X-Mailer: git-send-email 2.45.1 In-Reply-To: <20240527185601.713589927@linuxfoundation.org> References: <20240527185601.713589927@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: SeongJae Park [ Upstream commit 732b8815c079199d29b0426d9372bb098c63cdc7 ] DAMON context staging method in _damon_sysfs.py is not checking the returned error from nr_schemes file read. Check it. Link: https://lkml.kernel.org/r/20240503180318.72798-3-sj@kernel.org Fixes: f5f0e5a2bef9 ("selftests/damon/_damon_sysfs: implement kdamonds start function") Signed-off-by: SeongJae Park Cc: Jonathan Corbet Cc: Shuah Khan Signed-off-by: Andrew Morton Signed-off-by: Sasha Levin --- tools/testing/selftests/damon/_damon_sysfs.py | 2 ++ 1 file changed, 2 insertions(+) diff --git a/tools/testing/selftests/damon/_damon_sysfs.py b/tools/testing/selftests/damon/_damon_sysfs.py index d23d7398a27a8..fe77d7e73a25b 100644 --- a/tools/testing/selftests/damon/_damon_sysfs.py +++ b/tools/testing/selftests/damon/_damon_sysfs.py @@ -287,6 +287,8 @@ class DamonCtx: nr_schemes_file = os.path.join( self.sysfs_dir(), 'schemes', 'nr_schemes') content, err = read_file(nr_schemes_file) + if err is not None: + return err if int(content) != len(self.schemes): err = write_file(nr_schemes_file, '%d' % len(self.schemes)) if err != None: -- 2.43.0