diff --git a/scripts/kernel/uvc-debug.patch b/scripts/kernel/uvc-debug.patch
index ce2416e..75a3365 100644
--- a/scripts/kernel/uvc-debug.patch
+++ b/scripts/kernel/uvc-debug.patch
@@ -42,10 +42,26 @@
 +		video->uvc_num_requests, video->reqs_per_frame,
 +		video->queue.use_sg, video->queue.flags);
 +
+@@ -807,6 +820,15 @@
+ 	video->is_enabled = true;
+ 
++	if (!video->queue.queue.lock || !video->queue.queue.ops ||
++	    !video->queue.queue.mem_ops) {
++		uvcg_err(&video->uvc->func,
++			"Video queue not ready: dev=%p lock=%p ops=%p mem_ops=%p buf_ops=%p drv_priv=%p type=%u io_modes=0x%x\n",
++			video->queue.queue.dev, video->queue.queue.lock,
++			video->queue.queue.ops, video->queue.queue.mem_ops,
++			video->queue.queue.buf_ops, video->queue.queue.drv_priv,
++			video->queue.queue.type, video->queue.queue.io_modes);
++		return -EINVAL;
++	}
++
+ 	if ((ret = uvcg_queue_enable(&video->queue, 1)) < 0)
+ 		return ret;
  	/*
  	 * Safe to access request related fields without req_lock because
  	 * this is the only thread currently active, and no other
-
+ 
 @@ -510,6 +532,19 @@
  	if (req_size > max_req_size) {
  		/* The prepared interval length and expected buffer size
@@ -55,7 +71,7 @@
  		req_size = max_req_size;
  	}
  	video->req_size = req_size;
-
+ 
  	if (!req_size || !video->max_payload_size || !video->imagesize || !nreq) {
  		uvcg_info(&uvc->func,
  			"Video prep requests: imagesize=%u interval=%u interval_dur=%u nreq=%u header=%u req_size=%u max_req=%u max_payload=%u ep_maxpacket=%u maxburst=%u mult=%u bInterval=%u speed=%u\n",
@@ -65,5 +81,5 @@
  			video->ep->maxburst, video->ep->mult,
  			video->ep->desc->bInterval, cdev->gadget->speed);
  	}
-
+ 
  	/* We need to compensate the amount of requests to be