349 	if (mutex_lock_interruptible(&usbvision->v4l2_lock))  in usbvision_v4l2_open()
398 	mutex_unlock(&usbvision->v4l2_lock);  in usbvision_v4l2_open()
418 	mutex_lock(&usbvision->v4l2_lock);  in usbvision_v4l2_close()
429 	mutex_unlock(&usbvision->v4l2_lock);  in usbvision_v4l2_close()
1037 	if (mutex_lock_interruptible(&usbvision->v4l2_lock))  in usbvision_v4l2_read()
1040 	mutex_unlock(&usbvision->v4l2_lock);  in usbvision_v4l2_read()
1095 	if (mutex_lock_interruptible(&usbvision->v4l2_lock))  in usbvision_v4l2_mmap()
1098 	mutex_unlock(&usbvision->v4l2_lock);  in usbvision_v4l2_mmap()
1113 	if (mutex_lock_interruptible(&usbvision->v4l2_lock))  in usbvision_radio_open()
1139 	mutex_unlock(&usbvision->v4l2_lock);  in usbvision_radio_open()
1150 	mutex_lock(&usbvision->v4l2_lock);  in usbvision_radio_close()
1167 	mutex_unlock(&usbvision->v4l2_lock);  in usbvision_radio_close()
1265 	vdev->lock = &usbvision->v4l2_lock;  in usbvision_vdev_init()
1354 	mutex_init(&usbvision->v4l2_lock);  in usbvision_alloc()
1589 	mutex_lock(&usbvision->v4l2_lock);  in usbvision_disconnect()
1601 	mutex_unlock(&usbvision->v4l2_lock);  in usbvision_disconnect()