From patchwork Wed Jun 15 11:13:07 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Niklas_S=C3=B6derlund?= X-Patchwork-Id: 9178193 X-Patchwork-Delegate: geert@linux-m68k.org Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 01964608A2 for ; Wed, 15 Jun 2016 11:21:36 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E61362821D for ; Wed, 15 Jun 2016 11:21:35 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D583A28340; Wed, 15 Jun 2016 11:21:35 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 886372833D for ; Wed, 15 Jun 2016 11:21:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752958AbcFOLVf (ORCPT ); Wed, 15 Jun 2016 07:21:35 -0400 Received: from smtp-4.sys.kth.se ([130.237.48.193]:48162 "EHLO smtp-4.sys.kth.se" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753093AbcFOLVc (ORCPT ); Wed, 15 Jun 2016 07:21:32 -0400 Received: from smtp-4.sys.kth.se (localhost.localdomain [127.0.0.1]) by smtp-4.sys.kth.se (Postfix) with ESMTP id 52A1D3047; Wed, 15 Jun 2016 13:21:30 +0200 (CEST) X-Virus-Scanned: by amavisd-new at kth.se Received: from smtp-4.sys.kth.se ([127.0.0.1]) by smtp-4.sys.kth.se (smtp-4.sys.kth.se [127.0.0.1]) (amavisd-new, port 10024) with LMTP id vNk1-O3JV7J6; Wed, 15 Jun 2016 13:21:29 +0200 (CEST) X-KTH-Auth: niso [89.233.230.99] X-KTH-mail-from: niklas.soderlund+renesas@ragnatech.se Received: from bismarck.berto.se (dynamic.0.6.79d1f80.14cc20ac3a53.cust.bredband2.com [89.233.230.99]) by smtp-4.sys.kth.se (Postfix) with ESMTPSA id 1CB99333; Wed, 15 Jun 2016 13:21:29 +0200 (CEST) From: =?UTF-8?q?Niklas=20S=C3=B6derlund?= To: dmaengine@vger.kernel.org, linux-renesas-soc@vger.kernel.org Cc: vinod.koul@intel.com, geert+renesas@glider.be, laurent.pinchart+renesas@ideasonboard.com, mfarooq@visteon.com, =?UTF-8?q?Niklas=20S=C3=B6derlund?= Subject: [PATCH 3/4] dma: rcar-dma: Fixed active descriptor initializing Date: Wed, 15 Jun 2016 13:13:07 +0200 Message-Id: <20160615111308.28739-4-niklas.soderlund+renesas@ragnatech.se> X-Mailer: git-send-email 2.8.3 In-Reply-To: <20160615111308.28739-1-niklas.soderlund+renesas@ragnatech.se> References: <20160615111308.28739-1-niklas.soderlund+renesas@ragnatech.se> MIME-Version: 1.0 Sender: linux-renesas-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Muhammad Hamza Farooq Running descriptor pointer is set to NULL upon freeing resources. Other- wise, rcar_dmac_issue_pending might not start new transfers Signed-off-by: Muhammad Hamza Farooq Signed-off-by: Geert Uytterhoeven Signed-off-by: Niklas Söderlund Acked-by: Laurent Pinchart --- drivers/dma/sh/rcar-dmac.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/dma/sh/rcar-dmac.c b/drivers/dma/sh/rcar-dmac.c index 7f26576..59951fb 100644 --- a/drivers/dma/sh/rcar-dmac.c +++ b/drivers/dma/sh/rcar-dmac.c @@ -990,6 +990,8 @@ static void rcar_dmac_free_chan_resources(struct dma_chan *chan) list_splice_init(&rchan->desc.done, &list); list_splice_init(&rchan->desc.wait, &list); + rchan->desc.running = NULL; + list_for_each_entry(desc, &list, node) rcar_dmac_realloc_hwdesc(rchan, desc, 0);