From f27725756be8a2c2dc65eaf70d0b52807aa2f113 Mon Sep 17 00:00:00 2001
From: Len Brown <len.brown@intel.com>
Date: Sat, 26 Dec 2009 22:04:03 -0500
Subject: [PATCH] ACPI: hp-wmi, msi-wmi: clarify that
 wmi_install_notify_handler() returns an acpi_status

Emphasize that that wmi_install_notify_handler() returns an acpi_status
rather than -errno by by testing ACPI_SUCCESS(), ACPI_FAILURE().

No functional change in this patch, but this confusion caused a bug in dell-wmi.

Signed-off-by: Len Brown <len.brown@intel.com>
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