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=-13.0 required=3.0 tests=BAYES_00, 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 F071AC433E7 for ; Wed, 2 Sep 2020 14:14:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BDC6A20829 for ; Wed, 2 Sep 2020 14:14:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728037AbgIBOO0 (ORCPT ); Wed, 2 Sep 2020 10:14:26 -0400 Received: from szxga04-in.huawei.com ([45.249.212.190]:10799 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726521AbgIBOGs (ORCPT ); Wed, 2 Sep 2020 10:06:48 -0400 Received: from DGGEMS401-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id 73C3263CD800FB392089; Wed, 2 Sep 2020 22:06:45 +0800 (CST) Received: from localhost (10.174.179.108) by DGGEMS401-HUB.china.huawei.com (10.3.19.201) with Microsoft SMTP Server id 14.3.487.0; Wed, 2 Sep 2020 22:06:35 +0800 From: YueHaibing To: , , , CC: , , YueHaibing Subject: [PATCH -next] remoteproc: k3-dsp: Fix return value check in k3_dsp_rproc_of_get_memories() Date: Wed, 2 Sep 2020 22:06:14 +0800 Message-ID: <20200902140614.28636-1-yuehaibing@huawei.com> X-Mailer: git-send-email 2.10.2.windows.1 MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.174.179.108] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org In case of error, the function devm_ioremap_wc() returns NULL pointer not ERR_PTR(). The IS_ERR() test in the return value check should be replaced with NULL test. Fixes: 87218f96c21a ("remoteproc: k3-dsp: Add support for C71x DSPs") Signed-off-by: YueHaibing --- drivers/remoteproc/ti_k3_dsp_remoteproc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/remoteproc/ti_k3_dsp_remoteproc.c b/drivers/remoteproc/ti_k3_dsp_remoteproc.c index 9011e477290c..f373df35d7d0 100644 --- a/drivers/remoteproc/ti_k3_dsp_remoteproc.c +++ b/drivers/remoteproc/ti_k3_dsp_remoteproc.c @@ -445,10 +445,10 @@ static int k3_dsp_rproc_of_get_memories(struct platform_device *pdev, kproc->mem[i].cpu_addr = devm_ioremap_wc(dev, res->start, resource_size(res)); - if (IS_ERR(kproc->mem[i].cpu_addr)) { + if (!kproc->mem[i].cpu_addr) { dev_err(dev, "failed to map %s memory\n", data->mems[i].name); - return PTR_ERR(kproc->mem[i].cpu_addr); + return -EBUSY; } kproc->mem[i].bus_addr = res->start; kproc->mem[i].dev_addr = data->mems[i].dev_addr; -- 2.17.1