D27653.id.diff
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D27653.id.diff
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	Index: sys/dev/acpi_support/acpi_wmi.c
	===================================================================
	--- sys/dev/acpi_support/acpi_wmi.c
	+++ sys/dev/acpi_support/acpi_wmi.c
	@@ -246,7 +246,7 @@
	if ((sc->ec_dev = devclass_get_device(devclass_find("acpi_ec"), 0))
	== NULL)
	device_printf(dev, "cannot find EC device\n");
	- else if (ACPI_FAILURE((status = AcpiInstallNotifyHandler(sc->wmi_handle,
	+ if (ACPI_FAILURE((status = AcpiInstallNotifyHandler(sc->wmi_handle,
	ACPI_DEVICE_NOTIFY, acpi_wmi_notify_handler, sc))))
	device_printf(sc->wmi_dev, "couldn't install notify handler - %s\n",
	AcpiFormatException(status));
	@@ -701,6 +701,8 @@
	return (AE_BAD_PARAMETER);
	if (address + (width / 8) - 1 > 0xFF)
	return (AE_BAD_ADDRESS);
	+ if (sc->ec_dev == NULL)
	+ return (AE_NOT_FOUND);
	if (function == ACPI_READ)
	*value = 0;
	ec_addr = address;