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ACPI: NFIT: core: Use devm_acpi_install_notify_handler()

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[ Upstream commit 198541ad53 ]

Now that devm_acpi_install_notify_handler() is available, use it in
acpi_nfit_probe() instead of a custom devm action removing an ACPI
notify handler installed via acpi_dev_install_notify_handler().

Also drop the explicit ACPI_COMPANION() check against NULL that is
not necessary any more becuase devm_acpi_install_notify_handler()
carries out an equivalent check internally and use ACPI_HANDLE() to
retrieve the platform device's ACPI handle.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://patch.msgid.link/3048737.e9J7NaK4W3@rafael.j.wysocki
Stable-dep-of: 18a00ed0e7 ("ACPI: NFIT: core: Fix possible deadlock and missing notifications")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Rafael J. Wysocki
2026-07-24 16:03:46 +02:00
committed by Greg Kroah-Hartman
parent c5570ebe8e
commit 5dfed5a90e
1 changed files with 2 additions and 15 deletions
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drivers/acpi/nfit/core.c
+2 -15
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@@ -3298,14 +3298,6 @@ static void acpi_nfit_notify(acpi_handle handle, u32 event, void *data)
device_unlock(&adev->dev);
}
static void acpi_nfit_remove_notify_handler(void *data)
{
struct acpi_device *adev = data;
acpi_dev_remove_notify_handler(adev, ACPI_DEVICE_NOTIFY,
acpi_nfit_notify);
}
void acpi_nfit_shutdown(void *data)
{
struct acpi_nfit_desc *acpi_desc = data;
@@ -3350,13 +3342,8 @@ static int acpi_nfit_add(struct acpi_device *adev)
acpi_size sz;
int rc = 0;
rc = acpi_dev_install_notify_handler(adev, ACPI_DEVICE_NOTIFY,
acpi_nfit_notify);
if (rc)
return rc;
rc = devm_add_action_or_reset(dev, acpi_nfit_remove_notify_handler,
adev);
rc = devm_acpi_install_notify_handler(dev, ACPI_DEVICE_NOTIFY,
acpi_nfit_notify);
if (rc)
return rc;