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=-12.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 02C58C433E2 for ; Mon, 14 Sep 2020 08:50:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A0892221EF for ; Mon, 14 Sep 2020 08:50:33 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=monstr-eu.20150623.gappssmtp.com header.i=@monstr-eu.20150623.gappssmtp.com header.b="ggbwbppV" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726239AbgINIu0 (ORCPT ); Mon, 14 Sep 2020 04:50:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41644 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726128AbgINIuI (ORCPT ); Mon, 14 Sep 2020 04:50:08 -0400 Received: from mail-wr1-x444.google.com (mail-wr1-x444.google.com [IPv6:2a00:1450:4864:20::444]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 03F98C06178B for ; Mon, 14 Sep 2020 01:50:08 -0700 (PDT) Received: by mail-wr1-x444.google.com with SMTP id s12so17734870wrw.11 for ; Mon, 14 Sep 2020 01:50:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=monstr-eu.20150623.gappssmtp.com; s=20150623; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=Tnhr79mi4DKCMRU16Knp1ByZEtd2oOyfWvrEsPnasz0=; b=ggbwbppVHTxdFbCi0nMw/1Da6Zuoa6rODfIkC4FE1354F9DP6tyBWSrzqrTfGrfQX3 Gj3UYObzDxfj8+PrK/feQQLBRLx2I/GYO7OxagaLX5SDn+e1/8CtiTGKL59uCWEoQQmq DYzsdbhUUPe/7aPlqDxd4heNSLaTOKiErKd2BoSsiDPjtlFfnJA50MOiIkWliA8UVtHp 8/P9G4uvJdQ0msLNBk0ougfo/eJmMaE6b9P33WjgAgNkaw6Y2QIf5lLK290s265Zi9v9 FRhQriOKoyy+3IdK3pL5mqov96frfb4LELX34Inb/XDcOLQ47joFRAwjqMBknsUNPOaz vW0Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :in-reply-to:references:mime-version:content-transfer-encoding; bh=Tnhr79mi4DKCMRU16Knp1ByZEtd2oOyfWvrEsPnasz0=; b=c2v6YvQrMuVM9JmUli94pY5tiwbVIxjRTiYzGG82etqw0rwmHJGcaRYgQCrXJjD7/M getYtCwDUSpmQm4tugVWNvBXpOG9nNIifv8dtED6LE+xoErGbpe/mLeVuJoXm7W8fJ8g 4BwbngnrXZNe1XYJXBWD1BQTnOmmoIIAbq8ywZsL5mOeyLhn6NvNFKKGQDdPwNmnzLKS uwTMN2vjPdf7xhcw/51UUgQGZmO2Zfc++0L17FALw8NXXL3Sumoyiu2O+4j9GX2sMYSJ w8B4kGn5G1d0gqXcm5R1PDiUyWjY2vGhYbnvdj9Ew2KJsWc6hy6A4JXWnw33zZzoMJfG rrqA== X-Gm-Message-State: AOAM532SRushvovzKGaXllKakwjGiR3meTMOJEo8dGyP/GZ1A6/OW/fS gerMSJmQIDzSJGsi67LDTrzclA== X-Google-Smtp-Source: ABdhPJwNn8yyjbVS7CEijF6HJmDzLprYpyLbe3fkcIfXlK11CXthgCbgprAuNq7BPa8a1yvOLYbL6A== X-Received: by 2002:adf:bb8c:: with SMTP id q12mr14828713wrg.393.1600073406766; Mon, 14 Sep 2020 01:50:06 -0700 (PDT) Received: from localhost (nat-35.starnet.cz. [178.255.168.35]) by smtp.gmail.com with ESMTPSA id w21sm19324776wmk.34.2020.09.14.01.50.06 (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Mon, 14 Sep 2020 01:50:06 -0700 (PDT) From: Michal Simek To: linux-kernel@vger.kernel.org, monstr@monstr.eu, michal.simek@xilinx.com, git@xilinx.com Cc: Srinivas Neeli , Appana Durga Kedareswara rao , "David S. Miller" , Jakub Kicinski , Marc Kleine-Budde , Naga Sureshkumar Relli , Wolfgang Grandegger , linux-arm-kernel@lists.infradead.org, linux-can@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH 2/3] can: xilinx_can: Check return value of set_reset_mode Date: Mon, 14 Sep 2020 10:49:57 +0200 Message-Id: X-Mailer: git-send-email 2.28.0 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Srinivas Neeli Check return value of set_reset_mode() for error. Addresses-Coverity: "check_return" Signed-off-by: Srinivas Neeli Signed-off-by: Michal Simek --- drivers/net/can/xilinx_can.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/net/can/xilinx_can.c b/drivers/net/can/xilinx_can.c index f4b544b69646..3393e2a73e15 100644 --- a/drivers/net/can/xilinx_can.c +++ b/drivers/net/can/xilinx_can.c @@ -1369,9 +1369,13 @@ static irqreturn_t xcan_interrupt(int irq, void *dev_id) static void xcan_chip_stop(struct net_device *ndev) { struct xcan_priv *priv = netdev_priv(ndev); + int ret; /* Disable interrupts and leave the can in configuration mode */ - set_reset_mode(ndev); + ret = set_reset_mode(ndev); + if (ret < 0) + netdev_dbg(ndev, "set_reset_mode() Failed\n"); + priv->can.state = CAN_STATE_STOPPED; } -- 2.28.0