From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E72181C6A5; Fri, 30 Aug 2024 17:43:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725039818; cv=none; b=JPjdaTY0F68E6TJmsBvSFqK0JCmlFW4N/hdAK2Wvq2MckJ02fmOBoPJV63mVYZ5D+ErVvDEglBfWIEC5AZieGSPWsL62OmQu8ZpKahXet8Fu483AczotRXCM78QwYSab7Ho1Ekw4FwHomwU3E/r/JO/n6Ad57+SE6ify2sy/pgE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725039818; c=relaxed/simple; bh=1AOxpZEEhPcqEtpDmtJAnlt6xV8nYDl7biA3vgOP5Es=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=buOxne8fPJqR5ChgkWychzq+Ag31Ob/5yv9D9CXUo6/eSC1IMS/HA8r1XoXTnRjMeAl+/6/X0CMPjw/4sCzUtFce8VgevL2xYOj/MLORGOW6FKr+72n0T/OrQiYPOWYLZ1uDNYjUjKBkFKu1Ls9uRhaxDrRgMswTsko5uMLJjP4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Dn/SsfCn; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Dn/SsfCn" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 04FFDC4CEC2; Fri, 30 Aug 2024 17:43:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1725039817; bh=1AOxpZEEhPcqEtpDmtJAnlt6xV8nYDl7biA3vgOP5Es=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=Dn/SsfCntxwdUUKuRXzeQG7wnyjN4cScUhqYkfyTzSUBclO+gpqpEl6QvWumTNCPn hZXdoCFb40h3JjS546I+JTsZKcbkAkfur+2UIm7cIwIEiM+xNBjnPUGUr7eTr4mUI7 jWhPNDmjRcgYtvJFc/Grslf6MG1GtWg+VHgKoUN/iugKCmJV9kauEO1F25qTrC1H18 H/YlsLuSp/3dkk52ldJzyTMd+Xn3NOuJVlJvtlNXu+IDF4Ckc+zgX1K77cKmyyltJn 4HzYaXqu7n/1rttcN7KjuUzlBtL2VCRsMkmbMb9+zaVZUo4tj5z/foK+oHU/xzK9TF yTkj+vCMXSMKw== Message-ID: Date: Fri, 30 Aug 2024 19:43:30 +0200 Precedence: bulk X-Mailing-List: linux-wpan@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v1] ieee802154: at86rf230: Simplify with dev_err_probe() To: Simon Horman , Shen Lichuan Cc: alex.aring@gmail.com, stefan@datenfreihafen.org, miquel.raynal@bootlin.com, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, linux-wpan@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, opensource.kernel@vivo.com References: <20240830081402.21716-1-shenlichuan@vivo.com> <20240830160228.GU1368797@kernel.org> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 30/08/2024 18:02, Simon Horman wrote: > On Fri, Aug 30, 2024 at 04:14:02PM +0800, Shen Lichuan wrote: >> Use dev_err_probe() to simplify the error path and unify a message >> template. >> >> Using this helper is totally fine even if err is known to never >> be -EPROBE_DEFER. >> >> The benefit compared to a normal dev_err() is the standardized format >> of the error code, it being emitted symbolically and the fact that >> the error code is returned which allows more compact error paths. >> >> Signed-off-by: Shen Lichuan > > ... > >> @@ -1576,9 +1574,8 @@ static int at86rf230_probe(struct spi_device *spi) >> >> lp->regmap = devm_regmap_init_spi(spi, &at86rf230_regmap_spi_config); >> if (IS_ERR(lp->regmap)) { >> - rc = PTR_ERR(lp->regmap); >> - dev_err(&spi->dev, "Failed to allocate register map: %d\n", >> - rc); >> + dev_err_probe(&spi->dev, PTR_ERR(lp->regmap), >> + "Failed to allocate register map\n"); >> goto free_dev; > > After branching to dev_free the function will return rc. > So I think it still needs to be set a in this error path. Another bug introduced by @vivo.com. Since ~2 weeks there is tremendous amount of trivial patches coming from vivo.com. I identified at least 5 buggy, where the contributor did not understand the code. All these "trivial" improvements should be really double-checked. Best regards, Krzysztof