From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga04.intel.com ([192.55.52.120]:14777 "EHLO mga04.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751211AbcHHIEp (ORCPT ); Mon, 8 Aug 2016 04:04:45 -0400 Date: Mon, 8 Aug 2016 13:42:25 +0530 From: Vinod Koul To: Yoshihiro Shimoda Cc: dan.j.williams@intel.com, dmaengine@vger.kernel.org, linux-renesas-soc@vger.kernel.org, stable@vger.kernel.org Subject: Re: [PATCH] dmaengine: usb-dmac: check CHCR.DE bit in usb_dmac_isr_channel() Message-ID: <20160808081225.GU9681@localhost> References: <1470308381-11206-1-git-send-email-yoshihiro.shimoda.uh@renesas.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1470308381-11206-1-git-send-email-yoshihiro.shimoda.uh@renesas.com> Sender: stable-owner@vger.kernel.org List-ID: On Thu, Aug 04, 2016 at 07:59:41PM +0900, Yoshihiro Shimoda wrote: > The USB-DMAC's interruption happens even if the CHCR.DE is not set to 1 > because CHCR.NULLE is set to 1. So, this driver should call > usb_dmac_isr_transfer_end() if the DE bit is set to 1 only. Otherwise, > the desc is possible to be NULL in the usb_dmac_isr_transfer_end(). Applied, thanks -- ~Vinod