From: Thomas Renninger <[email protected]>
Signed-off-by: Thomas Renninger <[email protected]>
Cc: Matthew Garrett <[email protected]>
Cc: Len Brown <[email protected]>
Cc: Axel Lin <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
---
drivers/platform/x86/hp-wmi.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff -puN
drivers/platform/x86/hp-wmi.c~hp-wmi-return-enodev-if-bios-does-not-export-any-supported-hp-wmi-guid
drivers/platform/x86/hp-wmi.c
---
a/drivers/platform/x86/hp-wmi.c~hp-wmi-return-enodev-if-bios-does-not-export-any-supported-hp-wmi-guid
+++ a/drivers/platform/x86/hp-wmi.c
@@ -711,8 +711,10 @@ static int hp_wmi_resume_handler(struct
static int __init hp_wmi_init(void)
{
int err;
+ int event_capable = wmi_has_guid(HPWMI_EVENT_GUID);
+ int bios_capable = wmi_has_guid(HPWMI_BIOS_GUID);
- if (wmi_has_guid(HPWMI_EVENT_GUID)) {
+ if (event_capable) {
err = wmi_install_notify_handler(HPWMI_EVENT_GUID,
hp_wmi_notify, NULL);
if (ACPI_FAILURE(err))
@@ -724,7 +726,7 @@ static int __init hp_wmi_init(void)
}
}
- if (wmi_has_guid(HPWMI_BIOS_GUID)) {
+ if (bios_capable) {
err = platform_driver_register(&hp_wmi_driver);
if (err)
goto err_driver_reg;
@@ -738,6 +740,9 @@ static int __init hp_wmi_init(void)
goto err_device_add;
}
+ if (!bios_capable && !event_capable)
+ return -ENODEV;
+
return 0;
err_device_add:
_
--
To unsubscribe from this list: send the line "unsubscribe platform-driver-x86"
in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
