From nobody Mon Jun 29 07:27:42 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 378B2C433F5 for ; Mon, 14 Feb 2022 14:33:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1355190AbiBNOdr (ORCPT ); Mon, 14 Feb 2022 09:33:47 -0500 Received: from mxb-00190b01.gslb.pphosted.com ([23.128.96.19]:42732 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1355177AbiBNOdp (ORCPT ); Mon, 14 Feb 2022 09:33:45 -0500 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id B1A214BFC6 for ; Mon, 14 Feb 2022 06:33:37 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1644849216; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=oIIRJ21BwIfvNwz0gmLQtZq6j5ywHb6my37zjrdYjEk=; b=JdmyYN8NJiao2XNqO7tz8Akr1LZ8XEQX82ZxalSDsC0D+z4gF4zSNia9dfqlqP6KvY4ilG tF/yL5D208SfgAQzI+YEGZXhHkKmLSV+s/AIJmuOeidg/Kn1zn8Btw5CB66kbyyYEQMR59 lZpmxRnQPC+dTfZoHgTQdA0JVXw001s= Received: from mail-oo1-f70.google.com (mail-oo1-f70.google.com [209.85.161.70]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-583-f4tA5gRtN5mHVZMeanHJmg-1; Mon, 14 Feb 2022 09:33:35 -0500 X-MC-Unique: f4tA5gRtN5mHVZMeanHJmg-1 Received: by mail-oo1-f70.google.com with SMTP id g8-20020a4aa708000000b002e8efc514a6so10733701oom.12 for ; Mon, 14 Feb 2022 06:33:35 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=oIIRJ21BwIfvNwz0gmLQtZq6j5ywHb6my37zjrdYjEk=; b=AD/P0VuRgD4ZH7MA+JjhKdaUHlC9XMWuPmYe83cPMDvDE8aq5vHwl0JgLYDerOTvJs TBT5C5TMnuPZwYkZ+i0P0MdzJ1iOcTFhZTUbFNm32dNKrlvaOt7gxVP060bhZ6uaiQDV kN3ThA8XJa/ozImImAQ9VgYkOB1LKAJfIK45Cy/IM/s7Bg7DReAY6gG2hts/qAxhwfKD ZDmGvXG8P4CTFghWjzL1Ifm/RKoonGcf02L1FTI035GwPz/Exn94CgRcnQ9M6LHra86C ntWY30HXQRa0LrycAYo5LKuwX8DiVLdZ8tPzlY8b9JaeociVQg9oxno/gAnZLIkKh1Q2 8Hxw== X-Gm-Message-State: AOAM531wfMNgVQN1Eq7aGIqZ3CLrGk3anLmDAArapCKek+CeoWCMW7O1 j23UBjXPMONHIGd6lGwDcGjlYfpv6paD6nx756Fv0dfxGswIYxTa4gpBlt0Vs0BCJlKfN1Lqe38 bOUJwQaYSewrR+i5rXWuU9nqd X-Received: by 2002:a05:6870:c095:: with SMTP id c21mr2067589oad.245.1644849215018; Mon, 14 Feb 2022 06:33:35 -0800 (PST) X-Google-Smtp-Source: ABdhPJxdVQ5IR9sHLZgVPu2QVTSPw4yaT3G8ufJi3cdC6V7G9uaFDWwCWmnk8z6rfOM7YD50C4dtNQ== X-Received: by 2002:a05:6870:c095:: with SMTP id c21mr2067577oad.245.1644849214794; Mon, 14 Feb 2022 06:33:34 -0800 (PST) Received: from localhost.localdomain.com (024-205-208-113.res.spectrum.com. [24.205.208.113]) by smtp.gmail.com with ESMTPSA id z4sm12449303ota.7.2022.02.14.06.33.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 14 Feb 2022 06:33:34 -0800 (PST) From: trix@redhat.com To: jesse.brandeburg@intel.com, anthony.l.nguyen@intel.com, davem@davemloft.net, kuba@kernel.org, nathan@kernel.org, ndesaulniers@google.com, jacob.e.keller@intel.com Cc: intel-wired-lan@lists.osuosl.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, llvm@lists.linux.dev, Tom Rix Subject: [PATCH] ice: check the return of ice_ptp_gettimex64 Date: Mon, 14 Feb 2022 06:33:27 -0800 Message-Id: <20220214143327.2884183-1-trix@redhat.com> X-Mailer: git-send-email 2.26.3 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: Tom Rix Clang static analysis reports this issue time64.h:69:50: warning: The left operand of '+' is a garbage value set_normalized_timespec64(&ts_delta, lhs.tv_sec + rhs.tv_sec, ~~~~~~~~~~ ^ In ice_ptp_adjtime_nonatomic(), the timespec64 variable 'now' is set by ice_ptp_gettimex64(). This function can fail with -EBUSY, so 'now' can have a gargbage value. So check the return. Fixes: 06c16d89d2cb ("ice: register 1588 PTP clock device object for E810 d= evices") Signed-off-by: Tom Rix Tested-by: Gurucharan G (A Contingent worker at I= ntel) --- drivers/net/ethernet/intel/ice/ice_ptp.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.c b/drivers/net/etherne= t/intel/ice/ice_ptp.c index ae291d442539..000c39d163a2 100644 --- a/drivers/net/ethernet/intel/ice/ice_ptp.c +++ b/drivers/net/ethernet/intel/ice/ice_ptp.c @@ -1533,9 +1533,12 @@ ice_ptp_settime64(struct ptp_clock_info *info, const= struct timespec64 *ts) static int ice_ptp_adjtime_nonatomic(struct ptp_clock_info *info, s64 delt= a) { struct timespec64 now, then; + int ret; =20 then =3D ns_to_timespec64(delta); - ice_ptp_gettimex64(info, &now, NULL); + ret =3D ice_ptp_gettimex64(info, &now, NULL); + if (ret) + return ret; now =3D timespec64_add(now, then); =20 return ice_ptp_settime64(info, (const struct timespec64 *)&now); --=20 2.26.3