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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2026-02-12 14:26:54 +0100
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2026-02-13 14:22:19 +0100
commitb83afb7e8c3388dc82b5ea5b15d328d569a6fc41 (patch)
tree5a9937b802f5fce3db32848b5c143e2202b42e74
parentabbdf22e0a8f23207cedf9065512620971794ff5 (diff)
ACPI: battery: Drop redundant checks from acpi_battery_remove()
In acpi_battery_remove(), "battery" cannot be NULL because it is the driver data of the platform device passed to that function and it has been set by acpi_battery_probe(), so drop the redundant check of it against NULL. Moreover, getting the ACPI device pointer from battery->device is slightly less overhead than using the ACPI_COMPANION() macro on the platform device to retrieve it, so do that and drop the check of that pointer against NULL which is also redundant. No intentional functional impact. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://patch.msgid.link/12836976.O9o76ZdvQC@rafael.j.wysocki
-rw-r--r--drivers/acpi/battery.c6
1 files changed, 1 insertions, 5 deletions
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index a094763113bc..8fbad8bc4650 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -1271,13 +1271,9 @@ fail:
static void acpi_battery_remove(struct platform_device *pdev)
{
- struct acpi_device *device = ACPI_COMPANION(&pdev->dev);
struct acpi_battery *battery = platform_get_drvdata(pdev);
- if (!device || !battery)
- return;
-
- acpi_dev_remove_notify_handler(device, ACPI_ALL_NOTIFY,
+ acpi_dev_remove_notify_handler(battery->device, ACPI_ALL_NOTIFY,
acpi_battery_notify);
device_init_wakeup(&pdev->dev, false);