Received: by 2002:a25:6193:0:0:0:0:0 with SMTP id v141csp3385629ybb; Sun, 22 Mar 2020 23:22:01 -0700 (PDT) X-Google-Smtp-Source: ADFU+vttzKbgun1T4d+G4EALY9/Yrp3OXT+a9nxv8WqcDGL+E8tEXlEhDwsLnXijvhD19dIS4Yp9 X-Received: by 2002:a9d:4c05:: with SMTP id l5mr17352239otf.371.1584944520882; Sun, 22 Mar 2020 23:22:00 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1584944520; cv=none; d=google.com; s=arc-20160816; b=XnOkGHRK0sik97G0NpkcRhALkaz+fOQcK3FqeXh0D2nTF7jUbWcu+zIL5E8v8zALQi eCIER5bctDL3yV6+fugC9X5sMJsf7KbhRf9KTh8NjhEQbqJZFraDD4HHHoD18uS3JObH 8bWNaw9VfuI7Qx0GePaEEXxYv1dm29hJHaUTormiYNcLh0/2jM7n7Cc5NpKu3PMqKG11 oflkYaQhgU0Cmi/jnl1u2aDRqZzfh/xuN3NHc/7HaJoz3XOURD6uRN0EUv1I/heNBix2 ZQsn3iaa0GFOrS0NQ5+ba8w3k1Y4QMe8SgLnXh+E4v5VUQaPCtVVRKd6NfIiuYITv6pE UbCg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:in-reply-to:content-disposition :mime-version:references:message-id:subject:cc:to:from:date :dkim-signature; bh=gqPyj0ETK8iDT0l96XfthHwDwoteDgAqYGB1vcHtyLc=; b=LoBMcwKqShBZjAYB6roSiGo4v4yoWt6c/ZfuN2tSk779yYblWkedUhaKbNvHdWSTmm mQgv/lN5uxRWjjY1j5DOT4AVvFemKAgVdzLij/To7Gwznpv27pDmEJDoqlQd8UFISL3X WTXMj7jphwF0iXJV/3uGjZpq2vYzF6MvUIbWU/mv0mDHhD0xoK/waFosPfxNPbukaQFw YX278Dx2BqWp+ksHd1R5vljVAqW5Dr/8oF8X1qLupCf1jkSwLnTQIqZiHbuCBnteMyAo mF4V55XXBR3ZRdraQeu6ft12yyxJHdlI0wJBGoe9/BaZ2YZjnWgm/CmfWfAVxhc1BhC5 j37w== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=MbiySSaC; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id h4si7076259otk.87.2020.03.22.23.21.48; Sun, 22 Mar 2020 23:22:00 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=MbiySSaC; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727297AbgCWGVc (ORCPT + 99 others); Mon, 23 Mar 2020 02:21:32 -0400 Received: from mail.kernel.org ([198.145.29.99]:45814 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726059AbgCWGVc (ORCPT ); Mon, 23 Mar 2020 02:21:32 -0400 Received: from localhost (unknown [171.76.96.96]) (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 F348220714; Mon, 23 Mar 2020 06:21:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1584944491; bh=nwYvUT6fexgXAVeMCR+yqs2u6NvtJAyuwCaqcKagjLo=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=MbiySSaCSlKwEeE3846W6e7DvF27amo8+3rA76cUOcBE1xP8YBgE9XFZL1RFfRE3p R3yPsKfRakplh3RH4F229ipmlw3Dz9oLUtMd/GKvUfHrTXln3QiUQp5aKpVRk52RNz iPBTRElCPpJBqFaHNGaT4ahwfgULXcQKM2HRbrzQ= Date: Mon, 23 Mar 2020 11:51:27 +0530 From: Vinod Koul To: Christophe JAILLET Cc: dan.j.williams@intel.com, peter.ujfalusi@ti.com, grygorii.strashko@ti.com, dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org Subject: Re: [PATCH V2] dmaengine: ti: k3-udma-glue: Fix an error handling path in 'k3_udma_glue_cfg_rx_flow()' Message-ID: <20200323062127.GF72691@vkoul-mobl> References: <20200318191209.1267-1-christophe.jaillet@wanadoo.fr> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200318191209.1267-1-christophe.jaillet@wanadoo.fr> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 18-03-20, 20:12, Christophe JAILLET wrote: > All but one error handling paths in the 'k3_udma_glue_cfg_rx_flow()' > function 'goto err' and call 'k3_udma_glue_release_rx_flow()'. > > This not correct because this function has a 'channel->flows_ready--;' at > the end, but 'flows_ready' has not been incremented here, when we branch to > the error handling path. > > In order to keep a correct value in 'flows_ready', un-roll > 'k3_udma_glue_release_rx_flow()', simplify it, add some labels and branch > at the correct places when an error is detected. > > Doing so, we also NULLify 'flow->udma_rflow' in a path that was lacking it. Applied, thanks -- ~Vinod