From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753717AbYE2SEq (ORCPT ); Thu, 29 May 2008 14:04:46 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757496AbYE2SEe (ORCPT ); Thu, 29 May 2008 14:04:34 -0400 Received: from smtp117.sbc.mail.sp1.yahoo.com ([69.147.64.90]:27024 "HELO smtp117.sbc.mail.sp1.yahoo.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1757422AbYE2SEd (ORCPT ); Thu, 29 May 2008 14:04:33 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=pacbell.net; h=Received:X-YMail-OSG:X-Yahoo-Newman-Property:From:To:Subject:Date:User-Agent:Cc:References:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding:Content-Disposition:Message-Id; b=XYHqp0wM1nqwGuJi81SNklTqralcDepriq0UzhQ6gp3xPfx7LcewAZL/VMHOMJRnINVQJfI0JYfIH1BPXIG9tRu/C03mwW/PaW6n+ccN5LukWWi1ZXtzXzesBwf6bLZVNH3BUMi7g7+cfvI+dtLmbIQQ1CW6ydi15Thk8Cxo8yg= ; X-YMail-OSG: OKPpGuQVM1kzVYTUjFDejL3ERa70ENOmaR8owtyyltWTS_GcyTfOfOEJ4DqxjJXgmsmZ2f95xZopiYjBKeq3T48Y6er7Jx0UdCZJjAgsGM1pHz_9i6icBqaBwIDpX9J1A38- X-Yahoo-Newman-Property: ymail-3 From: David Brownell To: Li Yang Subject: Re: [PATCH] fsl_usb2_udc: fix recursive lock Date: Thu, 29 May 2008 11:04:30 -0700 User-Agent: KMail/1.9.9 Cc: gregkh@suse.de, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, "Eugene T. Bordenkircher" References: <1212066285-6013-1-git-send-email-leoli@freescale.com> In-Reply-To: <1212066285-6013-1-git-send-email-leoli@freescale.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit Content-Disposition: inline Message-Id: <200805291104.30779.david-b@pacbell.net> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thursday 29 May 2008, Li Yang wrote: > UDC needs to release lock before calling out to gadget driver, since > it may need to reenter.  The change fixes kernel BUG observed on rt > kernel. Acked-by: David Brownell ... clearly, 2.6.26 material; the same locking problem also shows up on non-RT kernels.