From patchwork Sun Dec 17 18:46:48 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 13495969 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 8BF1641A84; Sun, 17 Dec 2023 18:47:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="cxiOk5dS" Received: by smtp.kernel.org (Postfix) with ESMTPSA id DB3E4C433C7; Sun, 17 Dec 2023 18:47:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1702838846; bh=yP6evj5zceY7Ye61hXwY7pu/5SYa4vhY2oqK5+w0LMA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=cxiOk5dS6asXALo/hODL2as9vhZ9Iupkw0t0yZEVcLU1hdupnMg+BiYd3PlMZZLFf A6KQfP/FF4EDJKLcaRH9lWOiGdKCF3ApY6xW/rRi5uCE6bqpxNX4NwaFCmRxZ04C5/ 9ve7p9JX0EezEm0gA4Sq7dpEUm//B7NiROwu55oZZDhvfVSI6AaxWczUIHf46Aw48/ JlNWLIbnTirCOiFlsxjRj2iwBibp97zgjgJWCzmKBcrrJNYR7HvMyvBneV4Q1cOmx3 TcrTrPp3REToZgSbcjrpaHAkUYZ2ektYUweT3KkQ+RzBf46ileYXOZ3IwC5aurWA2V /CcgaJC7ce1zw== From: Jonathan Cameron To: linux-iio@vger.kernel.org, devicetree@vger.kernel.org Cc: Rob Herring , Frank Rowand , Jonathan Cameron Subject: [RFC PATCH 4/4] iio: adc: rcar-gyroadc: use __free(device_node) Date: Sun, 17 Dec 2023 18:46:48 +0000 Message-ID: <20231217184648.185236-5-jic23@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20231217184648.185236-1-jic23@kernel.org> References: <20231217184648.185236-1-jic23@kernel.org> Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Jonathan Cameron Using automated cleanup to replace of_node_put() handling allows for a simplfied flow by enabling direct returns on errors. Signed-off-by: Jonathan Cameron --- drivers/iio/adc/rcar-gyroadc.c | 20 ++++++-------------- 1 file changed, 6 insertions(+), 14 deletions(-) diff --git a/drivers/iio/adc/rcar-gyroadc.c b/drivers/iio/adc/rcar-gyroadc.c index d524f2e8e927..9d6227b31724 100644 --- a/drivers/iio/adc/rcar-gyroadc.c +++ b/drivers/iio/adc/rcar-gyroadc.c @@ -318,7 +318,7 @@ static int rcar_gyroadc_parse_subdevs(struct iio_dev *indio_dev) struct rcar_gyroadc *priv = iio_priv(indio_dev); struct device *dev = priv->dev; struct device_node *np = dev->of_node; - struct device_node *child; + struct device_node *child __free(device_node) = NULL; struct regulator *vref; unsigned int reg; unsigned int adcmode = -1, childmode; @@ -352,7 +352,7 @@ static int rcar_gyroadc_parse_subdevs(struct iio_dev *indio_dev) num_channels = ARRAY_SIZE(rcar_gyroadc_iio_channels_3); break; default: - goto err_e_inval; + return -EINVAL; } /* @@ -369,7 +369,7 @@ static int rcar_gyroadc_parse_subdevs(struct iio_dev *indio_dev) dev_err(dev, "Failed to get child reg property of ADC \"%pOFn\".\n", child); - goto err_of_node_put; + return ret; } /* Channel number is too high. */ @@ -377,7 +377,7 @@ static int rcar_gyroadc_parse_subdevs(struct iio_dev *indio_dev) dev_err(dev, "Only %i channels supported with %pOFn, but reg = <%i>.\n", num_channels, child, reg); - goto err_e_inval; + return -EINVAL; } } @@ -386,7 +386,7 @@ static int rcar_gyroadc_parse_subdevs(struct iio_dev *indio_dev) dev_err(dev, "Channel %i uses different ADC mode than the rest.\n", reg); - goto err_e_inval; + return -EINVAL; } /* Channel is valid, grab the regulator. */ @@ -396,8 +396,7 @@ static int rcar_gyroadc_parse_subdevs(struct iio_dev *indio_dev) if (IS_ERR(vref)) { dev_dbg(dev, "Channel %i 'vref' supply not connected.\n", reg); - ret = PTR_ERR(vref); - goto err_of_node_put; + return PTR_ERR(vref); } priv->vref[reg] = vref; @@ -422,7 +421,6 @@ static int rcar_gyroadc_parse_subdevs(struct iio_dev *indio_dev) * we can stop parsing here. */ if (childmode == RCAR_GYROADC_MODE_SELECT_1_MB88101A) { - of_node_put(child); break; } } @@ -433,12 +431,6 @@ static int rcar_gyroadc_parse_subdevs(struct iio_dev *indio_dev) } return 0; - -err_e_inval: - ret = -EINVAL; -err_of_node_put: - of_node_put(child); - return ret; } static void rcar_gyroadc_deinit_supplies(struct iio_dev *indio_dev)