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acrn-kernel
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net: rfkill: gpio: convert to resource managed allocation 

And remove now unneeded resource freeing.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: Rhyland Klein <rklein@nvidia.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Heikki Krogerus 2013-10-16 13:53:39 +03:00 committed by Johannes Berg
parent ee26eaefe3
commit 5e7ca3937f
1 changed files with 20 additions and 55 deletions
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75
net/rfkill/rfkill-gpio.c
View File

@ -97,7 +97,7 @@ static int rfkill_gpio_probe(struct platform_device *pdev)
return -EINVAL;
}
rfkill = kzalloc(sizeof(*rfkill), GFP_KERNEL);
rfkill = devm_kzalloc(&pdev->dev, sizeof(*rfkill), GFP_KERNEL);
if (!rfkill)
return -ENOMEM;
@ -105,89 +105,65 @@ static int rfkill_gpio_probe(struct platform_device *pdev)
ret = pdata->gpio_runtime_setup(pdev);
if (ret) {
pr_warn("%s: can't set up gpio\n", __func__);
goto fail_alloc;
return ret;
}
}
rfkill->pdata = pdata;
len = strlen(pdata->name);
rfkill->reset_name = kzalloc(len + 7, GFP_KERNEL);
if (!rfkill->reset_name) {
ret = -ENOMEM;
goto fail_alloc;
}
rfkill->reset_name = devm_kzalloc(&pdev->dev, len + 7, GFP_KERNEL);
if (!rfkill->reset_name)
return -ENOMEM;
rfkill->shutdown_name = kzalloc(len + 10, GFP_KERNEL);
if (!rfkill->shutdown_name) {
ret = -ENOMEM;
goto fail_reset_name;
}
rfkill->shutdown_name = devm_kzalloc(&pdev->dev, len + 10, GFP_KERNEL);
if (!rfkill->shutdown_name)
return -ENOMEM;
snprintf(rfkill->reset_name, len + 6 , "%s_reset", pdata->name);
snprintf(rfkill->shutdown_name, len + 9, "%s_shutdown", pdata->name);
if (pdata->power_clk_name) {
rfkill->pwr_clk = clk_get(&pdev->dev, pdata->power_clk_name);
rfkill->pwr_clk = devm_clk_get(&pdev->dev,
pdata->power_clk_name);
if (IS_ERR(rfkill->pwr_clk)) {
pr_warn("%s: can't find pwr_clk.\n", __func__);
ret = PTR_ERR(rfkill->pwr_clk);
goto fail_shutdown_name;
return PTR_ERR(rfkill->pwr_clk);
}
}
if (gpio_is_valid(pdata->reset_gpio)) {
ret = gpio_request(pdata->reset_gpio, rfkill->reset_name);
ret = devm_gpio_request(&pdev->dev, pdata->reset_gpio,
rfkill->reset_name);
if (ret) {
pr_warn("%s: failed to get reset gpio.\n", __func__);
goto fail_clock;
return ret;
}
}
if (gpio_is_valid(pdata->shutdown_gpio)) {
ret = gpio_request(pdata->shutdown_gpio, rfkill->shutdown_name);
ret = devm_gpio_request(&pdev->dev, pdata->shutdown_gpio,
rfkill->shutdown_name);
if (ret) {
pr_warn("%s: failed to get shutdown gpio.\n", __func__);
goto fail_reset;
return ret;
}
}
rfkill->rfkill_dev = rfkill_alloc(pdata->name, &pdev->dev, pdata->type,
&rfkill_gpio_ops, rfkill);
if (!rfkill->rfkill_dev) {
ret = -ENOMEM;
goto fail_shutdown;
}
if (!rfkill->rfkill_dev)
return -ENOMEM;
ret = rfkill_register(rfkill->rfkill_dev);
if (ret < 0)
goto fail_rfkill;
return ret;
platform_set_drvdata(pdev, rfkill);
dev_info(&pdev->dev, "%s device registered.\n", pdata->name);
return 0;
fail_rfkill:
rfkill_destroy(rfkill->rfkill_dev);
fail_shutdown:
if (gpio_is_valid(pdata->shutdown_gpio))
gpio_free(pdata->shutdown_gpio);
fail_reset:
if (gpio_is_valid(pdata->reset_gpio))
gpio_free(pdata->reset_gpio);
fail_clock:
if (rfkill->pwr_clk)
clk_put(rfkill->pwr_clk);
fail_shutdown_name:
kfree(rfkill->shutdown_name);
fail_reset_name:
kfree(rfkill->reset_name);
fail_alloc:
kfree(rfkill);
return ret;
}
static int rfkill_gpio_remove(struct platform_device *pdev)
@ -199,17 +175,6 @@ static int rfkill_gpio_remove(struct platform_device *pdev)
pdata->gpio_runtime_close(pdev);
rfkill_unregister(rfkill->rfkill_dev);
rfkill_destroy(rfkill->rfkill_dev);
if (gpio_is_valid(rfkill->pdata->shutdown_gpio))
gpio_free(rfkill->pdata->shutdown_gpio);
if (gpio_is_valid(rfkill->pdata->reset_gpio))
gpio_free(rfkill->pdata->reset_gpio);
if (rfkill->pwr_clk && PWR_CLK_ENABLED(rfkill))
clk_disable(rfkill->pwr_clk);
if (rfkill->pwr_clk)
clk_put(rfkill->pwr_clk);
kfree(rfkill->shutdown_name);
kfree(rfkill->reset_name);
kfree(rfkill);
return 0;
}