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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A7063CA0EFC for ; Fri, 30 Aug 2024 10:37:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=PuQLOcgOswIGBqHUiMsXN6H7d6OuwbQ4g4fMHhsU1Cs=; b=wmEeRY+PNnYp5NF6KIyj0bVjsd 2THIe0g9gG8BkACklATJnYUZKR/44utliFVVOnJ6QNNxS6NUaC+dqYDyPT8NvUKkFivwg+kZN6f15 YY7R/FzOaoV6hsytXrfrrZZAVuA76EbwzP0/VOqHkI28NC7olc/rUFEm0JCwiZZWGfUr7CPbZyJnM UQ9vxgJ/iEA/fzqc8Yk5Wa1C5BVLdOin8Jc2N7Wr8obDuipK4qmoxOb+/ADDvHu05xKkUQpJMhwJK wnBWptTlewaEge2gUvJjPEwjZKXgNLjDC7BvcJ3E72hfjuUNZnB71U5gYblfqTVnJIQhOoWyBdwnK 3pH+3Afw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sjz0h-00000005rAf-21Y1; Fri, 30 Aug 2024 10:37:43 +0000 Received: from nyc.source.kernel.org ([2604:1380:45d1:ec00::3]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sjyzp-00000005r0h-3jYW for linux-arm-kernel@lists.infradead.org; Fri, 30 Aug 2024 10:36:51 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by nyc.source.kernel.org (Postfix) with ESMTP id 1ED95A42667; Fri, 30 Aug 2024 10:36:42 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3BED8C4CEC2; Fri, 30 Aug 2024 10:36:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1725014208; bh=WxQVu7PK5+9hhgxdL7oowIXgwn/tPEZh5jvOVe935gw=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=NpkGaLM54K9yTG9BQKmoU5ioGMQKiQsXL+lPerOI5YWpy2MdULM5KI4pjhaqRtDe0 D8EcN2n5NHgTqSF0xVn+FcVyYj7IB1LU+/uO5E6P7/53+QOUAGidpaGDjSa3BpD9zE MZ98vrhYbJWoFKbVnxQQf9f27526ZilHu+IRLRDItzt/V2fq/QjYqB7fEQfIHxBUtV YoWUmw019xGgaOBWh777DUNqdCGcaSO9pMRTFWm5OoM79b0W58WlvTF1cS21Zk0rJm +u/3Y7FciIUOipJ66UmTrFCTRU8Qw3G+z+O6wWcN6bwJrHG/YMFNA8KyAH4fSvw7sx OGrw7p1Y5hT8w== Message-ID: <1757c33c-a407-4a23-806d-658d9abe051f@kernel.org> Date: Fri, 30 Aug 2024 12:36:43 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH -next v2 2/4] soc: ti: knav_dma: Use dev_err_probe() to simplfy code To: Nishanth Menon , Jinjie Ruan Cc: ssantosh@kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, jic23@kernel.org References: <20240830063228.3519385-1-ruanjinjie@huawei.com> <20240830063228.3519385-3-ruanjinjie@huawei.com> <20240830103155.5vs2hdokw6yysq47@finance> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240830_033650_087959_1262806A X-CRM114-Status: GOOD ( 16.56 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 30/08/2024 12:31, Nishanth Menon wrote: > On 14:32-20240830, Jinjie Ruan wrote: >> Use the dev_err_probe() helper to simplify error handling >> during probe. >> >> Signed-off-by: Jinjie Ruan >> --- >> v2: >> - Split into 2 patches. >> --- >> drivers/soc/ti/knav_dma.c | 12 ++++-------- >> 1 file changed, 4 insertions(+), 8 deletions(-) >> >> diff --git a/drivers/soc/ti/knav_dma.c b/drivers/soc/ti/knav_dma.c >> index 15e41d3a5e22..eeec422a46f0 100644 >> --- a/drivers/soc/ti/knav_dma.c >> +++ b/drivers/soc/ti/knav_dma.c >> @@ -708,17 +708,13 @@ static int knav_dma_probe(struct platform_device *pdev) >> struct device_node *node = pdev->dev.of_node; >> int ret = 0; >> >> - if (!node) { >> - dev_err(&pdev->dev, "could not find device info\n"); >> - return -EINVAL; >> - } >> + if (!node) >> + return dev_err_probe(&pdev->dev, -EINVAL, "could not find device info\n"); >> >> kdev = devm_kzalloc(dev, >> sizeof(struct knav_dma_pool_device), GFP_KERNEL); >> - if (!kdev) { >> - dev_err(dev, "could not allocate driver mem\n"); >> - return -ENOMEM; >> - } >> + if (!kdev) >> + return dev_err_probe(dev, -ENOMEM, "could not allocate driver mem\n"); > > These make no sense to me :( -> just using dev_err_probe when there is > no chance of -EPROBE_DEFER ? Well, this does not make sense from other point of view - memory allocation errors should have any printks... This patchset - like several others from Jinjie - is some sort of automation without careful consideration and without thinking whether code makes sense. Therefore I suggest to review it thoroughly and do not trust the "innocent" look of such changes. Best regards, Krzysztof