From nobody Tue Apr 7 16:31:38 2026 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8D3B4ECAAD2 for ; Fri, 26 Aug 2022 07:27:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S245336AbiHZH1y (ORCPT ); Fri, 26 Aug 2022 03:27:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40978 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S245330AbiHZH1m (ORCPT ); Fri, 26 Aug 2022 03:27:42 -0400 Received: from mail-pl1-x631.google.com (mail-pl1-x631.google.com [IPv6:2607:f8b0:4864:20::631]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 152F6D345D for ; Fri, 26 Aug 2022 00:27:41 -0700 (PDT) Received: by mail-pl1-x631.google.com with SMTP id v23so881126plo.9 for ; Fri, 26 Aug 2022 00:27:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc; bh=3iM6b2joscpJlkQz/PuQlcsTrGiQrRr+gu4xFycwI0U=; b=BTZkjmCOYHErNWV+QEQwC0dnuK2mKtDbtbwLYGxtBclKinJ28FS+vp7CL/nMqQtGYF qVdTQM2a1u2ZASn/BkFojOxML2evKj+4Adb2KTZuWiCMDrXDd0hJIBSbS0N9ggRmE7+w UZOaxqJNrFNi+JKXDoOBIkh9+syfY2l19T/5dkoXIvrIhKIFcZ+MvOf38zzS8v9N0s5s x7RwFfl3LQcTLFiQGbhI/dakUulBX8l4257HpaZVs7Qb431aZsMUU2VR03S2MJWktUBC mNJ2+vPs7aFz5aYDsuCjLuJ3zYQW/mM2zdaQRQAYpXMnPFDFNXWKa1OY22xcy15VOBU7 PiUw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc; bh=3iM6b2joscpJlkQz/PuQlcsTrGiQrRr+gu4xFycwI0U=; b=563O31WKcwOG5qCOeV3n/s4YHsaJEhCRQkeYEb/UlpqNs0/NhQ1NWlF4tAncWIU9Cx q+RNwmuqHdIEPrRzs3wwst5Sc6H8qrhvvout9JcwD/Mk6tgPgZMJzyPf/nXK9qEHqSnh /STKOuuhaBDa5kMUFtmT36p84k2ioHWhFM/amYv09pS+bSPZQHdKzAiFf9GwCP4Lvwfy z8w5RP8JNiEukhhr4m9/jYKmEH3m65o3WrE1nyX03Lsw02nXzV3kRiE98eFCIaZgQmGB MvbUjgAMrpF3SzypM+NdsLiRkTOCfRx/fRUYBQXIA80utygdbQEKM16jZ3by7Frup7xV 2/ag== X-Gm-Message-State: ACgBeo3sf7VJD28Q0WQi/b/HeIsNcqaG1nRbCJBh4VIW2b9wXjQqyMAi Y7PbBQovPQXUB1san8vXO0o= X-Google-Smtp-Source: AA6agR4r3Bci/NicMKP3JvGZHI7EYJ9xz9g80TSRrFpgLqRBw942b1w+5vdGowJ2+th9Zvc5OZ8SMA== X-Received: by 2002:a17:90b:35c1:b0:1fd:6992:f82a with SMTP id nb1-20020a17090b35c100b001fd6992f82amr862320pjb.188.1661498860251; Fri, 26 Aug 2022 00:27:40 -0700 (PDT) Received: from localhost.localdomain ([193.203.214.57]) by smtp.gmail.com with ESMTPSA id g11-20020a17090a290b00b001fb23c28e9asm954802pjd.2.2022.08.26.00.27.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 26 Aug 2022 00:27:40 -0700 (PDT) From: cgel.zte@gmail.com X-Google-Original-From: ye.xingchen@zte.com.cn To: rostedt@goodmis.org Cc: mingo@redhat.com, linux-kernel@vger.kernel.org, ye xingchen , Zeal Robot Subject: [PATCH linux-next] tracing: Remove the unneeded result variable Date: Fri, 26 Aug 2022 07:27:36 +0000 Message-Id: <20220826072736.253086-1-ye.xingchen@zte.com.cn> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: ye xingchen Return the value simple_read_from_buffer() directly instead of storing it in another redundant variable. Reported-by: Zeal Robot Signed-off-by: ye xingchen --- kernel/trace/trace_events.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c index 0356cae0cf74..9e4dd1720fff 100644 --- a/kernel/trace/trace_events.c +++ b/kernel/trace/trace_events.c @@ -1435,7 +1435,6 @@ system_enable_read(struct file *filp, char __user *ub= uf, size_t cnt, struct trace_array *tr =3D dir->tr; char buf[2]; int set =3D 0; - int ret; =20 mutex_lock(&event_mutex); list_for_each_entry(file, &tr->events, list) { @@ -1465,9 +1464,7 @@ system_enable_read(struct file *filp, char __user *ub= uf, size_t cnt, buf[0] =3D set_to_char[set]; buf[1] =3D '\n'; =20 - ret =3D simple_read_from_buffer(ubuf, cnt, ppos, buf, 2); - - return ret; + return simple_read_from_buffer(ubuf, cnt, ppos, buf, 2); } =20 static ssize_t --=20 2.25.1