From patchwork Thu Apr 8 19:57:18 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Muhammad Usama Anjum X-Patchwork-Id: 12192401 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=-12.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 DED6AC433B4 for ; Thu, 8 Apr 2021 19:57:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B902B610CC for ; Thu, 8 Apr 2021 19:57:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232467AbhDHT5j (ORCPT ); Thu, 8 Apr 2021 15:57:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39774 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232218AbhDHT5j (ORCPT ); Thu, 8 Apr 2021 15:57:39 -0400 Received: from mail-wm1-x329.google.com (mail-wm1-x329.google.com [IPv6:2a00:1450:4864:20::329]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6F6B5C061760; Thu, 8 Apr 2021 12:57:27 -0700 (PDT) Received: by mail-wm1-x329.google.com with SMTP id j4-20020a05600c4104b029010c62bc1e20so1825608wmi.3; Thu, 08 Apr 2021 12:57:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:mime-version:content-disposition; bh=pHid7b1osF0SpTWtp0Ym0Sv/8aucsroZP/wDvU5qRUY=; b=SDD77RRxaFIx6pnvEz8lN7D1kL7Sn5GoTa3dNZUubUCb93BqP4nTqhhci6lRfoEsII SxRKvuOgtDblZRWYQfC0QN/y+W+HLEVGTceTdV51m+4D4jo96HRbsA9TsMnOBwC4w4LG XVTDxyKDLhfJTf9jHbjTCm0BVq1Vz0pEedbrCWuqThKbw7HAftXTYa26QHkwsp5ab4JA gwsxSali9y8hG7caeSHE4ObRAsIuISWdLglO2MFIgik5JdIsRhYY9TrZQ7qbPM/BX4kH YXvYd9Xxf1lj3aL57hC35j7aasE1eb2L6ltfO2Ecwk9Nyd7afkvx0AONrJvTNGF+bSLs wJYw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:mime-version :content-disposition; bh=pHid7b1osF0SpTWtp0Ym0Sv/8aucsroZP/wDvU5qRUY=; b=QLW7tLSIluQ+iQhG/BTnZb1ClRMOFU1MCF/GLvqHUrvLSLZDomXhqNLiLj3x9JSVIa V5LwieypOxJDF+/aJdKaXMpGHd/nsgvZqLDXHIKFjyZ6TP1Ph6zFG3AQ9IYWwtKCvlPz Fi1qGGjfyc8GgfNtDEEP0LaV53tMpYWueuE171IR4MoHjq2NDGXW2VD8N1nwDJac91+V LoGC8JNy3NsUJMScsjzpiAWfFjKhW6Sun67ue3eFoCemwBajIuJzZV1u1N38SaRtvYVd PhT8F5Yfx0ISqRDScf4FZ3FXoPkDXaJNKGalLMYvYJbh0YbOp2+FQedWGq/Yyjipszch moUw== X-Gm-Message-State: AOAM531Tg6klLCxM6yXe6IQkVkInod+3e4CC4dJpkbCueaRaAZb0PxDO nEWcCS7TI1vMQ9Z452Lqw3Y= X-Google-Smtp-Source: ABdhPJwumd9NyP++HS8c5TOLkkrMEBeTlEaV4aIyq1qCaTKCVHgdihqEgAPi3I5S0vnHubKWaorvIQ== X-Received: by 2002:a1c:7409:: with SMTP id p9mr9787834wmc.153.1617911846245; Thu, 08 Apr 2021 12:57:26 -0700 (PDT) Received: from LEGION ([39.46.7.73]) by smtp.gmail.com with ESMTPSA id j30sm480579wrj.62.2021.04.08.12.57.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 08 Apr 2021 12:57:25 -0700 (PDT) Date: Fri, 9 Apr 2021 00:57:18 +0500 From: Muhammad Usama Anjum To: Mark Brown , Tian Tao , "open list:SPI SUBSYSTEM" , open list Cc: musamaanjum@gmail.com, kernel-janitors@vger.kernel.org, colin.king@canonical.com, dan.carpenter@oracle.com Subject: [PATCH] spi: orion: set devdata properly as it is being used later Message-ID: <20210408195718.GA3075166@LEGION> MIME-Version: 1.0 Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org If device_get_match_data returns NULL, devdata isn't being updated properly. It is being used later in the function. Both devdata and spi->devdata should be updated to avoid NULL pointer dereference. Addresses-Coverity: ("NULL pointer dereference") Fixes: 0e6521f13c2 ("spi: orion: Use device_get_match_data() helper") Signed-off-by: Muhammad Usama Anjum --- drivers/spi/spi-orion.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/spi/spi-orion.c b/drivers/spi/spi-orion.c index d02c5c9def20..34b31aba3981 100644 --- a/drivers/spi/spi-orion.c +++ b/drivers/spi/spi-orion.c @@ -676,7 +676,8 @@ static int orion_spi_probe(struct platform_device *pdev) spi->dev = &pdev->dev; devdata = device_get_match_data(&pdev->dev); - spi->devdata = devdata ? devdata : &orion_spi_dev_data; + devdata = devdata ? devdata : &orion_spi_dev_data; + spi->devdata = devdata; spi->clk = devm_clk_get(&pdev->dev, NULL); if (IS_ERR(spi->clk)) {