Use device managed functions to simplify error handling, reduce
source code size, improve readability, and reduce the likelyhood of bugs.
The conversion was done automatically with coccinelle using the
following semantic patches. The semantic patches and the scripts used
to generate this commit log are available at
https://github.com/groeck/coccinelle-patches
- Replace 'goto l; ... l: return e;' with 'return e;'
- Replace 'val = e; return val;' with 'return e;'
- Drop assignments to otherwise unused variables
- Replace 'if (e) { return expr; }' with 'if (e) return expr;'
- Drop remove function
- Drop platform_set_drvdata()
- Use devm_watchdog_register_driver() to register watchdog device
Acked-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
ret = da9052_reg_update(da9052, DA9052_CONTROL_D_REG,
DA9052_CONTROLD_WATCHDOG, 1 << 7);
if (ret < 0)
ret = da9052_reg_update(da9052, DA9052_CONTROL_D_REG,
DA9052_CONTROLD_WATCHDOG, 1 << 7);
if (ret < 0)
/*
* FIXME: Reset the watchdog core, in general PMIC
* is supposed to do this
*/
/*
* FIXME: Reset the watchdog core, in general PMIC
* is supposed to do this
*/
- ret = da9052_reg_update(da9052, DA9052_CONTROL_D_REG,
- DA9052_CONTROLD_WATCHDOG, 0 << 7);
-err_strobe:
- return ret;
+ return da9052_reg_update(da9052, DA9052_CONTROL_D_REG,
+ DA9052_CONTROLD_WATCHDOG, 0 << 7);
}
static const struct watchdog_info da9052_wdt_info = {
}
static const struct watchdog_info da9052_wdt_info = {
driver_data = devm_kzalloc(&pdev->dev, sizeof(*driver_data),
GFP_KERNEL);
driver_data = devm_kzalloc(&pdev->dev, sizeof(*driver_data),
GFP_KERNEL);
- if (!driver_data) {
- ret = -ENOMEM;
- goto err;
- }
+ if (!driver_data)
+ return -ENOMEM;
driver_data->da9052 = da9052;
da9052_wdt = &driver_data->wdt;
driver_data->da9052 = da9052;
da9052_wdt = &driver_data->wdt;
if (ret < 0) {
dev_err(&pdev->dev, "Failed to disable watchdog bits, %d\n",
ret);
if (ret < 0) {
dev_err(&pdev->dev, "Failed to disable watchdog bits, %d\n",
ret);
- ret = watchdog_register_device(&driver_data->wdt);
+ ret = devm_watchdog_register_device(&pdev->dev, &driver_data->wdt);
if (ret != 0) {
dev_err(da9052->dev, "watchdog_register_device() failed: %d\n",
ret);
if (ret != 0) {
dev_err(da9052->dev, "watchdog_register_device() failed: %d\n",
ret);
- platform_set_drvdata(pdev, driver_data);
-err:
-static int da9052_wdt_remove(struct platform_device *pdev)
-{
- struct da9052_wdt_data *driver_data = platform_get_drvdata(pdev);
-
- watchdog_unregister_device(&driver_data->wdt);
-
- return 0;
-}
-
static struct platform_driver da9052_wdt_driver = {
.probe = da9052_wdt_probe,
static struct platform_driver da9052_wdt_driver = {
.probe = da9052_wdt_probe,
- .remove = da9052_wdt_remove,
.driver = {
.name = "da9052-watchdog",
},
.driver = {
.name = "da9052-watchdog",
},