From patchwork Wed Mar 16 15:08:01 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Krzysztof Kozlowski X-Patchwork-Id: 552509 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 2B21AC433FE for ; Wed, 16 Mar 2022 15:09:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1356984AbiCPPKW (ORCPT ); Wed, 16 Mar 2022 11:10:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44138 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1356977AbiCPPKU (ORCPT ); Wed, 16 Mar 2022 11:10:20 -0400 Received: from smtp-relay-internal-1.canonical.com (smtp-relay-internal-1.canonical.com [185.125.188.123]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5EAAA66ACC for ; Wed, 16 Mar 2022 08:09:02 -0700 (PDT) Received: from mail-wm1-f71.google.com (mail-wm1-f71.google.com [209.85.128.71]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by smtp-relay-internal-1.canonical.com (Postfix) with ESMTPS id 0A9283F1E5 for ; Wed, 16 Mar 2022 15:09:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=canonical.com; s=20210705; t=1647443341; bh=0TkaUHsdiaalOGmdOdYbrrLuoBcQ76N1kyxAw52pHyQ=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=S8/5VgUcxOPjAVlshLMznvrtZI2Kr0MQXCoCOTqpkY7JvlpktWLhFiD5BvSR0KUb0 8VdZJPpR0ff7XaMRPH76ZqvfmbIjRtQyp4czWJlSPwWM+qMgtFlDSITm1vcrbGkaX8 aBlHuO9HKAOMMPwRweiU7L7cVeJQlE8rZorYXS2n7JOTuZeiCaPz8fBVVf0pNffR6h h89M+bTcQkHDpWz8VqilNb0fZ72+aWeuJzk/MUP3cgfJKVqeXTFG8PvzbQvwegfR79 FFtrfyLFoc9RMelkjPfYrUzhwLCo57pqbO5q53tf3VUsUZfUacXgKuSqRmEWzToOx2 5BTnq4nzDyyhg== Received: by mail-wm1-f71.google.com with SMTP id o21-20020a05600c511500b003818c4b98b5so814066wms.0 for ; Wed, 16 Mar 2022 08:09:01 -0700 (PDT) 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:in-reply-to :references:mime-version:content-transfer-encoding; bh=0TkaUHsdiaalOGmdOdYbrrLuoBcQ76N1kyxAw52pHyQ=; b=qDoIn0xwMhqmu/vgUod+GclC2cRBLqikHP5at5gh1p41Fa94aybZB5b/I3uwpIwpEn qbgTVrgGLpi5aKucJUxWOZ/uoZJwZpJ1+IJMO4sujFtIiQZ1F1BHcdmCkU58aCqGQAGu VAacedwwyMABa+ajmwet+2R+CG55ts/eTx1JmVSrc9zRLCQaQZ5bE7S6+17j1ITVeACK pOBOr52kLEdpMja/IyC5Fb0PzYDiwSSyCg2JBzIp/5GNGPEy1bhM//MZd3oycMiefDCF XUC4nR9GVvTmtQUnw//moc/6IxuWH20BUynOULl0zsTt+QDkjXji+uoud3JeBh7OUANh GOPg== X-Gm-Message-State: AOAM530dogf0e4k1EcEd050MSzlnCLdwyIWzdMWhl7BCzKx7GFq9Lt1v 8cVKDxpzABFHdvb4YVgf2DiY34N11ep/XYGDLaff6ZNsAUo4iB/5MEOGW3iC1YgYRIBCgLl/w3g gLbdw77CS/4+S3ElN3PxTzoVpWl3wv7PH3RhQQw== X-Received: by 2002:a5d:6442:0:b0:203:dff2:866c with SMTP id d2-20020a5d6442000000b00203dff2866cmr272614wrw.465.1647443340523; Wed, 16 Mar 2022 08:09:00 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwnOg2aSuuzk/AN13SVnFGjUvC/KtTXL980cTeRfOeIj0D4M/X0M0ZN717fC4+xLvcCtZ4GNg== X-Received: by 2002:a5d:6442:0:b0:203:dff2:866c with SMTP id d2-20020a5d6442000000b00203dff2866cmr272574wrw.465.1647443340291; Wed, 16 Mar 2022 08:09:00 -0700 (PDT) Received: from localhost.localdomain (78-11-189-27.static.ip.netia.com.pl. [78.11.189.27]) by smtp.gmail.com with ESMTPSA id u18-20020adfdd52000000b001f04e9f215fsm1895105wrm.53.2022.03.16.08.08.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 16 Mar 2022 08:08:59 -0700 (PDT) From: Krzysztof Kozlowski To: Greg Kroah-Hartman , "Rafael J. Wysocki" Cc: Stuart Yoder , "K. Y. Srinivasan" , Haiyang Zhang , Stephen Hemminger , Wei Liu , Dexuan Cui , Bjorn Helgaas , Bjorn Andersson , Mathieu Poirier , Vineeth Vijayan , Peter Oberparleiter , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , Andy Gross , linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, NXP Linux Team , linux-arm-kernel@lists.infradead.org, linux-hyperv@vger.kernel.org, linux-pci@vger.kernel.org, linux-remoteproc@vger.kernel.org, linux-s390@vger.kernel.org, linux-arm-msm@vger.kernel.org, alsa-devel@alsa-project.org, linux-spi@vger.kernel.org, virtualization@lists.linux-foundation.org, Linus Torvalds , Rasmus Villemoes , Andy Shevchenko , Krzysztof Kozlowski , stable@vger.kernel.org, Stephen Boyd Subject: [PATCH v5 09/11] clk: imx: scu: Fix kfree() of static memory on setting driver_override Date: Wed, 16 Mar 2022 16:08:01 +0100 Message-Id: <20220316150803.421897-3-krzysztof.kozlowski@canonical.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20220316150533.421349-1-krzysztof.kozlowski@canonical.com> References: <20220316150533.421349-1-krzysztof.kozlowski@canonical.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org The driver_override field from platform driver should not be initialized from static memory (string literal) because the core later kfree() it, for example when driver_override is set via sysfs. Use dedicated helper to set driver_override properly. Fixes: 77d8f3068c63 ("clk: imx: scu: add two cells binding support") Cc: Signed-off-by: Krzysztof Kozlowski Acked-by: Stephen Boyd --- drivers/clk/imx/clk-scu.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/clk/imx/clk-scu.c b/drivers/clk/imx/clk-scu.c index 083da31dc3ea..4b2268b7d0d0 100644 --- a/drivers/clk/imx/clk-scu.c +++ b/drivers/clk/imx/clk-scu.c @@ -683,7 +683,12 @@ struct clk_hw *imx_clk_scu_alloc_dev(const char *name, return ERR_PTR(ret); } - pdev->driver_override = "imx-scu-clk"; + ret = driver_set_override(&pdev->dev, &pdev->driver_override, + "imx-scu-clk", strlen("imx-scu-clk")); + if (ret) { + platform_device_put(pdev); + return ERR_PTR(ret); + } ret = imx_clk_scu_attach_pd(&pdev->dev, rsrc_id); if (ret)