diff options
Diffstat (limited to 'drivers/thermal/thermal_core.c')
| -rw-r--r-- | drivers/thermal/thermal_core.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c index 11f0675cb7e5..8337c272d3ec 100644 --- a/drivers/thermal/thermal_core.c +++ b/drivers/thermal/thermal_core.c @@ -45,8 +45,10 @@ static LIST_HEAD(thermal_governor_list); static DEFINE_MUTEX(thermal_list_lock); static DEFINE_MUTEX(thermal_governor_lock); +static DEFINE_MUTEX(poweroff_lock); static atomic_t in_suspend; +static bool power_off_triggered; static struct thermal_governor *def_governor; @@ -342,7 +344,12 @@ static void handle_critical_trips(struct thermal_zone_device *tz, dev_emerg(&tz->device, "critical temperature reached(%d C),shutting down\n", tz->temperature / 1000); - orderly_poweroff(true); + mutex_lock(&poweroff_lock); + if (!power_off_triggered) { + orderly_poweroff(true); + power_off_triggered = true; + } + mutex_unlock(&poweroff_lock); } } @@ -1463,6 +1470,7 @@ static int __init thermal_init(void) { int result; + mutex_init(&poweroff_lock); result = thermal_register_governors(); if (result) goto error; @@ -1497,6 +1505,7 @@ error: ida_destroy(&thermal_cdev_ida); mutex_destroy(&thermal_list_lock); mutex_destroy(&thermal_governor_lock); + mutex_destroy(&poweroff_lock); return result; } |