From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756084AbcH2UDJ (ORCPT ); Mon, 29 Aug 2016 16:03:09 -0400 Received: from mail-pa0-f65.google.com ([209.85.220.65]:34084 "EHLO mail-pa0-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754185AbcH2UDI (ORCPT ); Mon, 29 Aug 2016 16:03:08 -0400 Date: Mon, 29 Aug 2016 12:57:45 -0700 From: Brian Norris To: Boris Brezillon Cc: Roger Quadros , dan.carpenter@oracle.com, richard@nod.at, fcooper@ti.com, linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] mtd: nand: omap2: Don't call dma_release_channel() if dma_request_chan() failed Message-ID: <20160829195745.GA99752@google.com> References: <1471247259-27107-1-git-send-email-rogerq@ti.com> <20160815172200.11b9860c@bbrezillon> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20160815172200.11b9860c@bbrezillon> 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 On Mon, Aug 15, 2016 at 05:22:00PM +0200, Boris Brezillon wrote: > On Mon, 15 Aug 2016 10:47:39 +0300 > Roger Quadros wrote: > > > dma_request_chan() can fail returning an error pointer. In this case > > prevent calling dma_release_channel() to prevent a ERR_PTR() dereference. > > > > As error path can be called even with no DMA configuration, info->dma can > > be NULL so don't call dma_release_channel() for that case either. > > > > Fixes: de3bfc4a1616: ("mtd: nand: omap2: fix return value check in omap_nand_probe()") > > Reported-by: Dan Carpenter > > Signed-off-by: Roger Quadros > > Acked-by: Boris Brezillon > > Brian, can you apply this fix directly? Applied to linux-mtd.git