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ACPI: NFIT: Install Notify() handler before getting NFIT table

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If there is no NFIT at startup, it will return 0 immediately in function
acpi_nfit_add() and will not install Notify() handler. If hotplugging
a nvdimm device later, it will not be identified as there is no Notify()
handler.

Install the handler before getting NFI table in function acpi_nfit_add()
to avoid above issue.

Fixes: dcca12ab62 ("ACPI: NFIT: Install Notify() handler directly")
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Xiang Chen 2023-10-19 21:01:21 +08:00 • committed by Rafael J. Wysocki
parent f20f29cbcb
commit 9b311b7313
1 changed files with 11 additions and 11 deletions
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22
drivers/acpi/nfit/core.c
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@ -3339,6 +3339,16 @@ 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);
if (rc)
return rc;
status = acpi_get_table(ACPI_SIG_NFIT, 0, &tbl);
if (ACPI_FAILURE(status)) {
/* The NVDIMM root device allows OS to trigger enumeration of
@ -3386,17 +3396,7 @@ static int acpi_nfit_add(struct acpi_device *adev)
if (rc)
return rc;
rc = devm_add_action_or_reset(dev, acpi_nfit_shutdown, acpi_desc);
if (rc)
return rc;
rc = acpi_dev_install_notify_handler(adev, ACPI_DEVICE_NOTIFY,
acpi_nfit_notify);
if (rc)
return rc;
return devm_add_action_or_reset(dev, acpi_nfit_remove_notify_handler,
adev);
return devm_add_action_or_reset(dev, acpi_nfit_shutdown, acpi_desc);
}
static void acpi_nfit_update_notify(struct device *dev, acpi_handle handle)