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From: Anson Huang <anson.huang@nxp.com>
To: "shawnguo@kernel.org" <shawnguo@kernel.org>,
	"s.hauer@pengutronix.de" <s.hauer@pengutronix.de>,
	"kernel@pengutronix.de" <kernel@pengutronix.de>,
	"festevam@gmail.com" <festevam@gmail.com>,
	Leonard Crestez <leonard.crestez@nxp.com>,
	Abel Vesa <abel.vesa@nxp.com>,
	"viresh.kumar@linaro.org" <viresh.kumar@linaro.org>,
	"linux-arm-kernel@lists.infradead.org" 
	<linux-arm-kernel@lists.infradead.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Cc: dl-linux-imx <linux-imx@nxp.com>
Subject: [PATCH 2/2] soc: imx: soc-imx8: Correct return value of error handle
Date: Tue, 21 May 2019 09:18:46 +0000	[thread overview]
Message-ID: <1558430013-18346-2-git-send-email-Anson.Huang@nxp.com> (raw)
In-Reply-To: <1558430013-18346-1-git-send-email-Anson.Huang@nxp.com>

Current implementation of i.MX8 SoC driver returns -ENODEV
for all cases of error during initialization, this is incorrect.
This patch fixes them using correct return value according
to different errors.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
---
 drivers/soc/imx/soc-imx8.c | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/drivers/soc/imx/soc-imx8.c b/drivers/soc/imx/soc-imx8.c
index 944add2..9dd088f 100644
--- a/drivers/soc/imx/soc-imx8.c
+++ b/drivers/soc/imx/soc-imx8.c
@@ -73,7 +73,7 @@ static int __init imx8_soc_init(void)
 
 	soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
 	if (!soc_dev_attr)
-		return -ENODEV;
+		return -ENOMEM;
 
 	soc_dev_attr->family = "Freescale i.MX";
 
@@ -83,8 +83,10 @@ static int __init imx8_soc_init(void)
 		goto free_soc;
 
 	id = of_match_node(imx8_soc_match, root);
-	if (!id)
+	if (!id) {
+		ret = -ENODEV;
 		goto free_soc;
+	}
 
 	data = id->data;
 	if (data) {
@@ -94,12 +96,16 @@ static int __init imx8_soc_init(void)
 	}
 
 	soc_dev_attr->revision = imx8_revision(soc_rev);
-	if (!soc_dev_attr->revision)
+	if (!soc_dev_attr->revision) {
+		ret = -ENOMEM;
 		goto free_soc;
+	}
 
 	soc_dev = soc_device_register(soc_dev_attr);
-	if (IS_ERR(soc_dev))
+	if (IS_ERR(soc_dev)) {
+		ret = PTR_ERR(soc_dev);
 		goto free_rev;
+	}
 
 	if (IS_ENABLED(CONFIG_ARM_IMX_CPUFREQ_DT))
 		platform_device_register_simple("imx-cpufreq-dt", -1, NULL, 0);
@@ -113,6 +119,6 @@ static int __init imx8_soc_init(void)
 free_soc:
 	kfree(soc_dev_attr);
 	of_node_put(root);
-	return -ENODEV;
+	return ret;
 }
 device_initcall(imx8_soc_init);
-- 
2.7.4


  reply	other threads:[~2019-05-21  9:18 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-21  9:18 [PATCH 1/2] soc: imx: soc-imx8: Avoid unnecessary of_node_put() in error handling Anson Huang
2019-05-21  9:18 ` Anson Huang [this message]
2019-05-21 11:03 ` Leonard Crestez
2019-05-23 12:40 ` Shawn Guo
2019-05-24  5:53   ` Anson Huang

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