From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Brown Subject: Re: Deadlock scenario in regulator core Date: Tue, 22 Mar 2011 22:43:17 +0000 Message-ID: <20110322224316.GA10841@opensource.wolfsonmicro.com> References: <4D891C59.1030009@codeaurora.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from opensource.wolfsonmicro.com ([80.75.67.52]:53489 "EHLO opensource2.wolfsonmicro.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753063Ab1CVWnE (ORCPT ); Tue, 22 Mar 2011 18:43:04 -0400 Content-Disposition: inline In-Reply-To: <4D891C59.1030009@codeaurora.org> Sender: linux-arm-msm-owner@vger.kernel.org List-Id: linux-arm-msm@vger.kernel.org To: David Collins Cc: Liam Girdwood , linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org On Tue, Mar 22, 2011 at 03:02:01PM -0700, David Collins wrote: > enable the parent regulator? Likewise, is the lock around > _notifier_call_chain required? For this: we don't want the chain changing under us and the chain is protected by the mutex.