From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2C7FBC48BDB for ; Sun, 7 Jul 2019 17:22:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E790620830 for ; Sun, 7 Jul 2019 17:22:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1562520146; bh=2s2gE1E50GfJ/EeGP73+waB27rAFwSqJTvo/pyPbyTs=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=1ShKU7bB2CAZVYyZZNhp5XjpA3LflkJ9l7F15zIw9whQaU26X7HDQwToQtPmnT9wS /QimL6HmQjV4r3fthYhvHjf156NJpLvcDf4/eqWmbqDBqKmZ8okA8oR8Qw/WrU1F3q +pk5mBB/jkLvimuTannSLn4uA+8jaIqpPb3uoZ/w= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727085AbfGGRWZ (ORCPT ); Sun, 7 Jul 2019 13:22:25 -0400 Received: from mail.kernel.org ([198.145.29.99]:41686 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726375AbfGGRWZ (ORCPT ); Sun, 7 Jul 2019 13:22:25 -0400 Received: from localhost (unknown [49.207.58.53]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 123B62082F; Sun, 7 Jul 2019 17:22:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1562520144; bh=2s2gE1E50GfJ/EeGP73+waB27rAFwSqJTvo/pyPbyTs=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=p8xhwKgCQQTlYyEcvQ9jYHJsRv0Z+cre4Dl/vakph1j//935NcoNxWlgYm9an0aBI tm8lVCX129aYQ1F7gtpxXixVR8/7M1hOdTo8Rd8T68DdyqUjfLMmNJoRRRYfkIRwdr hatgmaikvSFZLBe+cNlfc+FPBrhwAvaXzdjvaH4g= Date: Sun, 7 Jul 2019 22:47:01 +0530 From: Vinod Koul To: Raag Jadav Cc: dmaengine@vger.kernel.org, Ludovic Desroches , Dan Williams , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] dmaengine: at_xdmac: check for non-empty xfers_list before invoking callback Message-ID: <20190707171701.GI2911@vkoul-mobl> References: <1561796448-3321-1-git-send-email-raagjadav@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1561796448-3321-1-git-send-email-raagjadav@gmail.com> User-Agent: Mutt/1.11.3 (2019-02-01) Sender: dmaengine-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org On 29-06-19, 13:50, Raag Jadav wrote: > tx descriptor retrieved from an empty xfers_list may not have valid > pointers to the callback functions. > Avoid calling dmaengine_desc_get_callback_invoke if xfers_list is empty. Applied, thanks -- ~Vinod