From 4985cd0a63b0713b6469ef01aae6a0e63ea72f83 Mon Sep 17 00:00:00 2001 From: Henrique de Moraes Holschuh Date: Fri, 27 Apr 2007 22:00:10 -0300 Subject: [PATCH] ACPI: thinkpad-acpi: do not arm fan watchdog if it would not work 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 Signed-off-by: Len Brown --- drivers/misc/thinkpad_acpi.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c index 7dc3a2206195..f824259fa611 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); -- GitLab