From 183bcdd8ba3be4ecd18a9fff6670d25661f3b1b2 Mon Sep 17 00:00:00 2001
From: stephematician <steph.fn.contact@proton.me>
Date: Fri, 13 Dec 2024 15:15:58 +1100
Subject: [PATCH] Revert 97dc86b and fix #607

Revert to FIFO management of dev->outbuf_list
---
 v4l2loopback.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/v4l2loopback.c b/v4l2loopback.c
index 18b8f678..17a79f8d 100644
--- a/v4l2loopback.c
+++ b/v4l2loopback.c
@@ -1880,8 +1880,8 @@ static int vidioc_dqbuf(struct file *file, void *fh, struct v4l2_buffer *buf)
 	case V4L2_BUF_TYPE_VIDEO_OUTPUT:
 		spin_lock_bh(&dev->list_lock);
 
-		b = list_entry(dev->outbufs_list.prev, struct v4l2l_buffer,
-			       list_head);
+		b = list_first_entry(&dev->outbufs_list, struct v4l2l_buffer,
+				     list_head);
 		list_move_tail(&b->list_head, &dev->outbufs_list);
 
 		spin_unlock_bh(&dev->list_lock);