Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753129AbdLEX3D (ORCPT ); Tue, 5 Dec 2017 18:29:03 -0500 Received: from smtp.codeaurora.org ([198.145.29.96]:54542 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753098AbdLEX27 (ORCPT ); Tue, 5 Dec 2017 18:28:59 -0500 DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org B82DC6034D Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=sboyd@codeaurora.org Date: Tue, 5 Dec 2017 15:28:54 -0800 From: Stephen Boyd To: Chunyan Zhang Cc: Michael Turquette , linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, Cai Li , Orson Zhai , Chunyan Zhang Subject: Re: [PATCH V2] clk: fix a panic error caused by accessing NULL pointer Message-ID: <20171205232854.GC4283@codeaurora.org> References: <20171121092438.19316-1-chunyan.zhang@spreadtrum.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20171121092438.19316-1-chunyan.zhang@spreadtrum.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 621 Lines: 19 On 11/21, Chunyan Zhang wrote: > From: Cai Li > > In some cases the clock parent would be set NULL when doing re-parent, > it will cause a NULL pointer accessing if clk_set trace event is > enabled. > > This patch sets the parent as "none" if the input parameter is NULL. > > Fixes: dfc202ead312 (clk: Add tracepoints for hardware operations) > Signed-off-by: Cai Li > Signed-off-by: Chunyan Zhang > --- Applied to clk-fixes -- Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project