[PATCH 5/5] cpufreq: Loongson1: Replace goto out with return in ls1x_cpufreq_probe()

From: Keguang Zhang
Date: Mon Apr 11 2016 - 07:56:56 EST


From: Kelvin Cheung <keguang.zhang@xxxxxxxxx>

This patch replaces goto out with return in ls1x_cpufreq_probe(),
and also includes some minor fixes.

Signed-off-by: Kelvin Cheung <keguang.zhang@xxxxxxxxx>
---
drivers/cpufreq/loongson1-cpufreq.c | 37 ++++++++++++++++---------------------
1 file changed, 16 insertions(+), 21 deletions(-)

diff --git a/drivers/cpufreq/loongson1-cpufreq.c b/drivers/cpufreq/loongson1-cpufreq.c
index 5074f5e..1bc90af 100644
--- a/drivers/cpufreq/loongson1-cpufreq.c
+++ b/drivers/cpufreq/loongson1-cpufreq.c
@@ -1,7 +1,7 @@
/*
* CPU Frequency Scaling for Loongson 1 SoC
*
- * Copyright (C) 2014 Zhang, Keguang <keguang.zhang@xxxxxxxxx>
+ * Copyright (C) 2014-2016 Zhang, Keguang <keguang.zhang@xxxxxxxxx>
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without any
@@ -141,7 +141,8 @@ static int ls1x_cpufreq_probe(struct platform_device *pdev)
struct clk *clk;
int ret;

- if (!pdata || !pdata->clk_name || !pdata->osc_clk_name)
+ if (!pdata || !pdata->clk_name || !pdata->osc_clk_name) {
+ dev_err(&pdev->dev, "platform data missing\n");
return -EINVAL;

cpufreq =
@@ -155,8 +156,7 @@ static int ls1x_cpufreq_probe(struct platform_device *pdev)
if (IS_ERR(clk)) {
dev_err(&pdev->dev, "unable to get %s clock\n",
pdata->clk_name);
- ret = PTR_ERR(clk);
- goto out;
+ return PTR_ERR(clk);
}
cpufreq->clk = clk;

@@ -164,8 +164,7 @@ static int ls1x_cpufreq_probe(struct platform_device *pdev)
if (IS_ERR(clk)) {
dev_err(&pdev->dev, "unable to get parent of %s clock\n",
__clk_get_name(cpufreq->clk));
- ret = PTR_ERR(clk);
- goto out;
+ return PTR_ERR(clk);
}
cpufreq->mux_clk = clk;

@@ -173,8 +172,7 @@ static int ls1x_cpufreq_probe(struct platform_device *pdev)
if (IS_ERR(clk)) {
dev_err(&pdev->dev, "unable to get parent of %s clock\n",
__clk_get_name(cpufreq->mux_clk));
- ret = PTR_ERR(clk);
- goto out;
+ return PTR_ERR(clk);
}
cpufreq->pll_clk = clk;

@@ -182,8 +180,7 @@ static int ls1x_cpufreq_probe(struct platform_device *pdev)
if (IS_ERR(clk)) {
dev_err(&pdev->dev, "unable to get %s clock\n",
pdata->osc_clk_name);
- ret = PTR_ERR(clk);
- goto out;
+ return PTR_ERR(clk);
}
cpufreq->osc_clk = clk;

@@ -194,32 +191,30 @@ static int ls1x_cpufreq_probe(struct platform_device *pdev)
if (ret) {
dev_err(&pdev->dev,
"failed to register CPUFreq driver: %d\n", ret);
- goto out;
+ return ret;
}

ret = cpufreq_register_notifier(&ls1x_cpufreq_notifier_block,
CPUFREQ_TRANSITION_NOTIFIER);

- if (!ret)
- goto out;
-
- dev_err(&pdev->dev, "failed to register cpufreq notifier: %d\n", ret);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to register CPUFreq notifier: %d\n", ret);
+ cpufreq_unregister_driver(&ls1x_cpufreq_driver);
+ }

- cpufreq_unregister_driver(&ls1x_cpufreq_driver);
-out:
return ret;
}

static struct platform_driver ls1x_cpufreq_platdrv = {
- .driver = {
+ .probe = ls1x_cpufreq_probe,
+ .remove = ls1x_cpufreq_remove,
+ .driver = {
.name = "ls1x-cpufreq",
},
- .probe = ls1x_cpufreq_probe,
- .remove = ls1x_cpufreq_remove,
};

module_platform_driver(ls1x_cpufreq_platdrv);

MODULE_AUTHOR("Kelvin Cheung <keguang.zhang@xxxxxxxxx>");
-MODULE_DESCRIPTION("Loongson 1 CPUFreq driver");
+MODULE_DESCRIPTION("Loongson1 CPUFreq driver");
MODULE_LICENSE("GPL");
--
1.9.1