ACPI: DPTF: Convert to platform remove callback returning void

The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.

To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new(), which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().

Trivially convert these two drivers from always returning zero in the
remove callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/acpi/dptf/dptf_pch_fivr.c b/drivers/acpi/dptf/dptf_pch_fivr.c
index 4919e7abe93f47280157dcc91f10f09434951255..654aaa53c67f777806805e3d3fce9c6d37df4ac4 100644 (file)
--- a/drivers/acpi/dptf/dptf_pch_fivr.c
+++ b/drivers/acpi/dptf/dptf_pch_fivr.c
@@ -141,11 +141,9 @@ static int pch_fivr_add(struct platform_device *pdev)
        return 0;
 }
 
-static int pch_fivr_remove(struct platform_device *pdev)
+static void pch_fivr_remove(struct platform_device *pdev)
 {
        sysfs_remove_group(&pdev->dev.kobj, &pch_fivr_attribute_group);
-
-       return 0;
 }
 
 static const struct acpi_device_id pch_fivr_device_ids[] = {
@@ -159,7 +157,7 @@ MODULE_DEVICE_TABLE(acpi, pch_fivr_device_ids);
 
 static struct platform_driver pch_fivr_driver = {
        .probe = pch_fivr_add,
-       .remove = pch_fivr_remove,
+       .remove_new = pch_fivr_remove,
        .driver = {
                .name = "dptf_pch_fivr",
                .acpi_match_table = pch_fivr_device_ids,

diff --git a/drivers/acpi/dptf/dptf_power.c b/drivers/acpi/dptf/dptf_power.c
index 86561eda939f7953b21ebd4b85366ee15094a4fa..b8187babbbbb5075faeb79ad7fafbf63e35bc2a7 100644 (file)
--- a/drivers/acpi/dptf/dptf_power.c
+++ b/drivers/acpi/dptf/dptf_power.c
@@ -209,7 +209,7 @@ static int dptf_power_add(struct platform_device *pdev)
        return 0;
 }
 
-static int dptf_power_remove(struct platform_device *pdev)
+static void dptf_power_remove(struct platform_device *pdev)
 {
        struct acpi_device *acpi_dev = platform_get_drvdata(pdev);
 
@@ -221,8 +221,6 @@ static int dptf_power_remove(struct platform_device *pdev)
                sysfs_remove_group(&pdev->dev.kobj, &dptf_battery_attribute_group);
        else
                sysfs_remove_group(&pdev->dev.kobj, &dptf_power_attribute_group);
-
-       return 0;
 }
 
 static const struct acpi_device_id int3407_device_ids[] = {
@@ -242,7 +240,7 @@ MODULE_DEVICE_TABLE(acpi, int3407_device_ids);
 
 static struct platform_driver dptf_power_driver = {
        .probe = dptf_power_add,
-       .remove = dptf_power_remove,
+       .remove_new = dptf_power_remove,
        .driver = {
                .name = "dptf_power",
                .acpi_match_table = int3407_device_ids,