Commit f26ca1d6 authored Nov 27, 2013 by Toshi Kani Committed by Rafael J. Wysocki Nov 28, 2013

ACPI / PCI / hotplug: Avoid warning when _ADR not present



acpiphp_enumerate_slots() walks ACPI namenamespace under
a PCI host bridge with callback register_slot().
register_slot() evaluates _ADR for all the device objects
and emits a warning message for any error.  Some platforms
have _HID device objects (such as HPET and IPMI), which
trigger unnecessary warning messages.

This patch avoids emitting a warning message when a target
device object does not have _ADR.

Signed-off-by: Toshi Kani <toshi.kani@hp.com>
Cc: 3.12+ <stable@vger.kernel.org> # 3.12+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

parent 6ce4eac1

drivers/pci/hotplug/acpiphp_glue.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -279,7 +279,9 @@ static acpi_status register_slot(acpi_handle handle, u32 lvl, void *data,

		status = acpi_evaluate_integer(handle, "_ADR", NULL, &adr);
		if (ACPI_FAILURE(status)) {
		acpi_handle_warn(handle, "can't evaluate _ADR (%#x)\n", status);
		if (status != AE_NOT_FOUND)
		acpi_handle_warn(handle,
		"can't evaluate _ADR (%#x)\n", status);
		return AE_OK;
		}