261 	mutex_lock(&pvt->iface_mtx);  in pvt_soft_isr()
272 	mutex_unlock(&pvt->iface_mtx);  in pvt_soft_isr()
370 	ret = mutex_lock_interruptible(&pvt->iface_mtx);  in pvt_write_limit()
390 	mutex_unlock(&pvt->iface_mtx);  in pvt_write_limit()
490 	ret = mutex_lock_interruptible(&pvt->iface_mtx);  in pvt_read_data()
519 	mutex_unlock(&pvt->iface_mtx);  in pvt_read_data()
655 	ret = mutex_lock_interruptible(&pvt->iface_mtx);  in pvt_write_trim()
662 	mutex_unlock(&pvt->iface_mtx);  in pvt_write_trim()
671 	ret = mutex_lock_interruptible(&pvt->iface_mtx);  in pvt_read_timeout()
678 	mutex_unlock(&pvt->iface_mtx);  in pvt_read_timeout()
723 	ret = mutex_lock_interruptible(&pvt->iface_mtx);  in pvt_write_timeout()
730 	mutex_unlock(&pvt->iface_mtx);  in pvt_write_timeout()
881 	mutex_destroy(&pvt->iface_mtx);  in pvt_clear_data()
902 	mutex_init(&pvt->iface_mtx);  in pvt_create_data()
1107 	mutex_lock(&pvt->iface_mtx);  in pvt_disable_iface()
1111 	mutex_unlock(&pvt->iface_mtx);  in pvt_disable_iface()
1130 	mutex_lock(&pvt->iface_mtx);  in pvt_enable_iface()
1133 	mutex_unlock(&pvt->iface_mtx);  in pvt_enable_iface()