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>

diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c
index 8781d8f..18bf741 100644 (file)
--- a/drivers/platform/x86/hp-wmi.c
+++ b/drivers/platform/x86/hp-wmi.c
@@ -581,7 +581,7 @@ static int __init hp_wmi_init(void)
        if (wmi_has_guid(HPWMI_EVENT_GUID)) {
                err = wmi_install_notify_handler(HPWMI_EVENT_GUID,
                                                 hp_wmi_notify, NULL);
-               if (!err)
+               if (ACPI_SUCCESS(err))
                        hp_wmi_input_setup();
        }
 

diff --git a/drivers/platform/x86/msi-wmi.c b/drivers/platform/x86/msi-wmi.c
index 7f77f90..f746c67 100644 (file)
--- a/drivers/platform/x86/msi-wmi.c
+++ b/drivers/platform/x86/msi-wmi.c
@@ -236,7 +236,7 @@ static int __init msi_wmi_init(void)
        }
        err = wmi_install_notify_handler(MSIWMI_EVENT_GUID,
                        msi_wmi_notify, NULL);
-       if (err)
+       if (ACPI_FAILURE(err))
                return -EINVAL;
 
        err = msi_wmi_input_setup();