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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 1C5E4C2D0DB for ; Fri, 24 Jan 2020 14:39:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E4215206F0 for ; Fri, 24 Jan 2020 14:39:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1579876784; bh=/L54vVnnNVCgLi+l/otzPqeZ9ozHFoiiQUcEnjPcDwE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=kUTRc3urEgePW2/65CA7tr6A56DMjjFRR3AfUcRkynVAyKUNUBTUeC8f0gLBvMW2r 2YksshtKDlDkShNWQxv59Id+Rnnu/RqEHVkagFza7o7couTXM50tWrCANRGrxXtEU/ ubtpjvR7IqDVnZZ3mTG2v6RKlOXY9HlsY8IsXiEQ= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390677AbgAXOS3 (ORCPT ); Fri, 24 Jan 2020 09:18:29 -0500 Received: from mail.kernel.org ([198.145.29.99]:37726 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390527AbgAXOSZ (ORCPT ); Fri, 24 Jan 2020 09:18:25 -0500 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 3B6112087E; Fri, 24 Jan 2020 14:18:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1579875504; bh=/L54vVnnNVCgLi+l/otzPqeZ9ozHFoiiQUcEnjPcDwE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=BR15FaAWgs/x8d3vN5Eqvk4gHLF7i06aRuyaOGRgpfGAIMHAFRQ2fElmSZxzLyoAW XG+LApijnUc3bn7MxVbs2daen77pAUhIL0G01K5MRPTXCG23ejuVIhkrqc3JPgbZBo HfgUNO8o4y/PnjPvKx/cxU0MKE8loPJj5AHK7Hs8= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Tony Lindgren , Sasha Levin , linux-arm-kernel@lists.infradead.org, linux-omap@vger.kernel.org Subject: [PATCH AUTOSEL 5.4 006/107] ARM: OMAP2+: Fix ti_sysc_find_one_clockdomain to check for to_clk_hw_omap Date: Fri, 24 Jan 2020 09:16:36 -0500 Message-Id: <20200124141817.28793-6-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200124141817.28793-1-sashal@kernel.org> References: <20200124141817.28793-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Tony Lindgren [ Upstream commit 90bdfa0b05e3cc809a7c1aa3b1f162b46ea1b330 ] We must bail out early if the clock is not hw_omap. Otherwise we will try to access invalid address with hwclk->clkdm_name: Unable to handle kernel paging request at virtual address ffffffff Internal error: Oops: 27 [#1] ARM ... (strcmp) from [] (clkdm_lookup+0x40/0x60) [] (clkdm_lookup) from [] (ti_sysc_clkdm_init+0x5c/0x64) [] (ti_sysc_clkdm_init) from [] (sysc_probe+0x948/0x117c) [] (sysc_probe) from [] (platform_drv_probe+0x48/0x98) ... Fixes: 2b2f7def058a ("bus: ti-sysc: Add support for missing clockdomain handling") Signed-off-by: Tony Lindgren Signed-off-by: Sasha Levin --- arch/arm/mach-omap2/pdata-quirks.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/arm/mach-omap2/pdata-quirks.c b/arch/arm/mach-omap2/pdata-quirks.c index 1b7cf81ff0356..33688e1d9acf9 100644 --- a/arch/arm/mach-omap2/pdata-quirks.c +++ b/arch/arm/mach-omap2/pdata-quirks.c @@ -368,10 +368,14 @@ static void __init dra7x_evm_mmc_quirk(void) static struct clockdomain *ti_sysc_find_one_clockdomain(struct clk *clk) { + struct clk_hw *hw = __clk_get_hw(clk); struct clockdomain *clkdm = NULL; struct clk_hw_omap *hwclk; - hwclk = to_clk_hw_omap(__clk_get_hw(clk)); + hwclk = to_clk_hw_omap(hw); + if (!omap2_clk_is_hw_omap(hw)) + return NULL; + if (hwclk && hwclk->clkdm_name) clkdm = clkdm_lookup(hwclk->clkdm_name); -- 2.20.1