352 	if (mutex_lock_interruptible(&usbvision->v4l2_lock))  in usbvision_v4l2_open()
407 	mutex_unlock(&usbvision->v4l2_lock);  in usbvision_v4l2_open()
427 	mutex_lock(&usbvision->v4l2_lock);  in usbvision_v4l2_close()
451 	mutex_unlock(&usbvision->v4l2_lock);  in usbvision_v4l2_close()
1081 	if (mutex_lock_interruptible(&usbvision->v4l2_lock))  in usbvision_v4l2_read()
1084 	mutex_unlock(&usbvision->v4l2_lock);  in usbvision_v4l2_read()
1139 	if (mutex_lock_interruptible(&usbvision->v4l2_lock))  in usbvision_v4l2_mmap()
1142 	mutex_unlock(&usbvision->v4l2_lock);  in usbvision_v4l2_mmap()
1157 	if (mutex_lock_interruptible(&usbvision->v4l2_lock))  in usbvision_radio_open()
1196 	mutex_unlock(&usbvision->v4l2_lock);  in usbvision_radio_open()
1208 	mutex_lock(&usbvision->v4l2_lock);  in usbvision_radio_close()
1229 	mutex_unlock(&usbvision->v4l2_lock);  in usbvision_radio_close()
1334 	vdev->lock = &usbvision->v4l2_lock;  in usbvision_vdev_init()
1412 	mutex_init(&usbvision->v4l2_lock);  in usbvision_alloc()
1646 	mutex_lock(&usbvision->v4l2_lock);  in usbvision_disconnect()
1662 	mutex_unlock(&usbvision->v4l2_lock);  in usbvision_disconnect()