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authorDawei Li <set_pte_at@outlook.com>2022-11-13 19:26:09 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2022-11-23 21:11:22 +0300
commit6c0eb5ba3500f6da367351ff3c4452c029cb72fa (patch)
tree86103c591d5e81a20ffb8d651d8676f81390f21f /drivers/hwmon/acpi_power_meter.c
parentd7d4332155efe82a3d70ab179dde30cad3b094a4 (diff)
downloadlinux-6c0eb5ba3500f6da367351ff3c4452c029cb72fa.tar.xz
ACPI: make remove callback of ACPI driver void
For bus-based driver, device removal is implemented as: 1 device_remove()-> 2 bus->remove()-> 3 driver->remove() Driver core needs no inform from callee(bus driver) about the result of remove callback. In that case, commit fc7a6209d571 ("bus: Make remove callback return void") forces bus_type::remove be void-returned. Now we have the situation that both 1 & 2 of calling chain are void-returned, so it does not make much sense for 3(driver->remove) to return non-void to its caller. So the basic idea behind this change is making remove() callback of any bus-based driver to be void-returned. This change, for itself, is for device drivers based on acpi-bus. Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Lee Jones <lee@kernel.org> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Dawei Li <set_pte_at@outlook.com> Reviewed-by: Maximilian Luz <luzmaximilian@gmail.com> # for drivers/platform/surface/* Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/hwmon/acpi_power_meter.c')
-rw-r--r--drivers/hwmon/acpi_power_meter.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/hwmon/acpi_power_meter.c b/drivers/hwmon/acpi_power_meter.c
index 0962c12eba5a..fa28d447f0df 100644
--- a/drivers/hwmon/acpi_power_meter.c
+++ b/drivers/hwmon/acpi_power_meter.c
@@ -910,12 +910,12 @@ exit:
return res;
}
-static int acpi_power_meter_remove(struct acpi_device *device)
+static void acpi_power_meter_remove(struct acpi_device *device)
{
struct acpi_power_meter_resource *resource;
if (!device || !acpi_driver_data(device))
- return -EINVAL;
+ return;
resource = acpi_driver_data(device);
hwmon_device_unregister(resource->hwmon_dev);
@@ -924,7 +924,6 @@ static int acpi_power_meter_remove(struct acpi_device *device)
free_capabilities(resource);
kfree(resource);
- return 0;
}
static int acpi_power_meter_resume(struct device *dev)