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=-9.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 335EFC43603 for ; Mon, 16 Dec 2019 00:24:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 02F302467B for ; Mon, 16 Dec 2019 00:24:18 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="LoQmFNUC" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726481AbfLPAYR (ORCPT ); Sun, 15 Dec 2019 19:24:17 -0500 Received: from mail-wm1-f68.google.com ([209.85.128.68]:33851 "EHLO mail-wm1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726260AbfLPAYQ (ORCPT ); Sun, 15 Dec 2019 19:24:16 -0500 Received: by mail-wm1-f68.google.com with SMTP id f4so3802407wmj.1 for ; Sun, 15 Dec 2019 16:24:15 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=3ygwsDNhmKVfGJs/MinYk9AFY4MjB2fx/AFZvzMWfp8=; b=LoQmFNUCgZ0zhhXilUbsKTpRrKQdc/E0XvpkZwcpkiZ9YA5T/l9rQt6AHdrb1RYsxn 9Y0GO+kfO8dtJtp75sHjED8RtO+N32Ly1gock6TDhsiUhnQP73IlQCjj58iC+RP1HBLV JGLsqvBWY++cbJWD4HRyfFQdTwr/WcAc7MZhWQ7rsDMvajW4MPnlM4vHUOcm0NRFK5lb MuLAiez7h3qy5GhxYDu7CbjILtY6pAuHb94qDWiPTEr8hG3ADLgjeW4nslML6JXwH76J tItXOB2Vg335U1W1RrdIy0dZqa2wO71BDgqhSAxjzdkehQAd5e5FuMqwH6JEnp/sckd5 vbsA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=3ygwsDNhmKVfGJs/MinYk9AFY4MjB2fx/AFZvzMWfp8=; b=sBjinVyNuIeTvSCwi1kM3MtqIADWA5Hjwrvm5IeIvucNOWWM/gU4NEAp8pPJH4wv59 iAiGjt6FYp8abXShEkEasGmbI8SXma/y34rVMCY9PBVtWCjqP2uOHWAMcqQw/eMz3HCN 1P0Ih3rfMMXp8ukEPJ1fhwd4SAAKkKOIGS+7dheMBT3TkgSX8nyBoSlogj2b0cA1NHDV HQdU3m74wJ6XzxuVJsau8SA9DN7gN3cC5efGph1tj6FH236KuAB0qG7jRYVeRZyzqoS2 i+fPovEYzDs6eT125/b8Oj0U4MRINDd9xUXbIiq85idwjvdsHY8IZzCnI60gaiN8MpoZ neEA== X-Gm-Message-State: APjAAAVOpnFtVN2MdXiJfNl2D5PGiElDbXLyWbM0bKtCVdjXP+5ZBtXm 1kEHQPNFxBn9NejGCCoSdw== X-Google-Smtp-Source: APXvYqyCjM/SUQtI8w5C26g931jLlZzpDVrQ7Vgtqh1z6PhWKuIhaeY3rBdQqYr4NpSyXxOeMaTywQ== X-Received: by 2002:a05:600c:224a:: with SMTP id a10mr27646492wmm.143.1576455854611; Sun, 15 Dec 2019 16:24:14 -0800 (PST) Received: from ninjahub.lan (host-92-15-174-53.as43234.net. [92.15.174.53]) by smtp.googlemail.com with ESMTPSA id e16sm19214555wrs.73.2019.12.15.16.24.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 15 Dec 2019 16:24:14 -0800 (PST) From: Jules Irenge To: bokun.feng@gmail.com Cc: peterz@infradead.org, mingo@redhat.com, acme@kernel.org, mark.rutland@arm.com, alexander.shishkin@linux.intel.com, jolsa@redhat.com, namhyung@kernel.org, linux-kernel@vger.kernel.org, Jules Irenge Subject: [PATCH] kernel: events: add releases() notation Date: Mon, 16 Dec 2019 00:24:00 +0000 Message-Id: <20191216002400.89985-1-jbi.octave@gmail.com> X-Mailer: git-send-email 2.23.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add releases() notation to remove issue detected by sparse context imbalance in perf_output_end() - unexpected unlock Signed-off-by: Jules Irenge --- kernel/events/ring_buffer.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/events/ring_buffer.c b/kernel/events/ring_buffer.c index 7ffd5c763f93..c8ad63f9faa5 100644 --- a/kernel/events/ring_buffer.c +++ b/kernel/events/ring_buffer.c @@ -295,6 +295,7 @@ unsigned int perf_output_skip(struct perf_output_handle *handle, } void perf_output_end(struct perf_output_handle *handle) + __releases() { perf_output_put_handle(handle); rcu_read_unlock(); -- 2.23.0