[PATCH 2/9] ACPI: thinkpad-acpi: do not arm fan watchdog if it would not work

Henrique de Moraes Holschuh
2007-04-28T01:00:23Z

Do not enable/rearm the fan control safety watchdog if we would not be able
to do anything to the fan anyway.

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
---
drivers/misc/thinkpad_acpi.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c
index 7dc3a22..f824259 100644
--- a/drivers/misc/thinkpad_acpi.c
+++ b/drivers/misc/thinkpad_acpi.c
@@ -3197,6 +3197,9 @@ static void fan_watchdog_reset(void)
{
static int fan_watchdog_active = 0;

+ if (fan_control_access_mode == TPACPI_FAN_WR_NONE)
+ return;
+
if (fan_watchdog_active)
cancel_delayed_work(&fan_watchdog_task);

--
1.5.1