2017 static struct mutex hotkey_mutex;  variable
2322 	mutex_lock(&hotkey_mutex);  in tpacpi_hotkey_driver_mask_set()
2335 	mutex_unlock(&hotkey_mutex);  in tpacpi_hotkey_driver_mask_set()
2684 	mutex_lock(&hotkey_mutex);  in hotkey_poll_setup_safe()
2686 	mutex_unlock(&hotkey_mutex);  in hotkey_poll_setup_safe()
2789 	if (mutex_lock_killable(&hotkey_mutex))  in hotkey_mask_store()
2798 	mutex_unlock(&hotkey_mutex);  in hotkey_mask_store()
2885 	if (mutex_lock_killable(&hotkey_mutex))  in hotkey_source_mask_store()
2900 	mutex_unlock(&hotkey_mutex);  in hotkey_source_mask_store()
2933 	if (mutex_lock_killable(&hotkey_mutex))  in hotkey_poll_freq_store()
2939 	mutex_unlock(&hotkey_mutex);  in hotkey_poll_freq_store()
3152 	mutex_lock(&hotkey_mutex);  in hotkey_exit()
3154 	mutex_unlock(&hotkey_mutex);  in hotkey_exit()
3489 	mutex_init(&hotkey_mutex);  in hotkey_init()
4263 	if (mutex_lock_killable(&hotkey_mutex))  in hotkey_read()
4268 	mutex_unlock(&hotkey_mutex);  in hotkey_read()
4301 	if (mutex_lock_killable(&hotkey_mutex))  in hotkey_write()
4333 	mutex_unlock(&hotkey_mutex);  in hotkey_write()