------------[ cut here ]------------
[  140.616703] drm-kunit-mock-device drm_test_framebuffer_free.drm-kunit-mock-device: [drm] drm_WARN_ON(!list_empty(&fb->filp_head))
[  140.616832] WARNING: CPU: 1 PID: 2545 at drivers/gpu/drm/drm_framebuffer.c:832 drm_framebuffer_free+0x13f/0x1c0
[  140.619522] Modules linked in:
[  140.620105] CPU: 1 UID: 0 PID: 2545 Comm: kunit_try_catch Tainted: G    B D W        N  6.16.0-rc5 #1 PREEMPT(voluntary) 
[  140.621072] Tainted: [B]=BAD_PAGE, [D]=DIE, [W]=WARN, [N]=TEST
[  140.621265] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[  140.621532] RIP: 0010:drm_framebuffer_free+0x13f/0x1c0
[  140.621715] Code: 8b 7d 50 4d 85 ff 74 2b 4c 89 ef e8 3b 3a 87 00 48 c7 c1 c0 38 5d b9 4c 89 fa 48 c7 c7 20 39 5d b9 48 89 c6 e8 82 ed 7e fe 90 <0f> 0b 90 90 e9 1c ff ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 ea
[  140.623281] RSP: 0000:ffff8881021d7b68 EFLAGS: 00010282
[  140.623894] RAX: 0000000000000000 RBX: ffff8881021d7c40 RCX: 1ffffffff7464ce8
[  140.625162] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000001
[  140.625795] RBP: ffff8881021d7b90 R08: 0000000000000000 R09: fffffbfff7464ce8
[  140.626561] R10: 0000000000000003 R11: 0000000000036d30 R12: ffff8881021d7c18
[  140.626968] R13: ffff888101746000 R14: ffff8881020bb000 R15: ffff888106c8f580
[  140.627934] FS:  0000000000000000(0000) GS:ffff88819fb72000(0000) knlGS:0000000000000000
[  140.628932] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  140.629389] CR2: 00007ffff7ffe000 CR3: 0000000067cbc000 CR4: 00000000000006f0
[  140.629983] DR0: ffffffffbb652440 DR1: ffffffffbb652441 DR2: ffffffffbb652443
[  140.630695] DR3: ffffffffbb652445 DR6: 00000000ffff0ff0 DR7: 0000000000000600
[  140.631256] Call Trace:
[  140.631402]  <TASK>
[  140.631536]  drm_test_framebuffer_free+0x1ab/0x610
[  140.631792]  ? __pfx_drm_test_framebuffer_free+0x10/0x10
[  140.632344]  ? __pfx_drm_mode_config_init_release+0x10/0x10
[  140.632783]  ? __pfx_drm_mode_config_init_release+0x10/0x10
[  140.633311]  ? __drmm_add_action_or_reset+0x22/0x50
[  140.633736]  ? __schedule+0x10cc/0x2b60
[  140.634098]  ? __pfx_read_tsc+0x10/0x10
[  140.634305]  ? ktime_get_ts64+0x86/0x230
[  140.634501]  kunit_try_run_case+0x1a5/0x480
[  140.634702]  ? __pfx_kunit_try_run_case+0x10/0x10
[  140.635193]  ? _raw_spin_lock_irqsave+0xa1/0x100
[  140.635610]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[  140.636078]  ? __kthread_parkme+0x82/0x180
[  140.636429]  ? preempt_count_sub+0x50/0x80
[  140.636639]  ? __pfx_kunit_try_run_case+0x10/0x10
[  140.637308]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[  140.637756]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[  140.638139]  kthread+0x337/0x6f0
[  140.638445]  ? trace_preempt_on+0x20/0xc0
[  140.638666]  ? __pfx_kthread+0x10/0x10
[  140.639022]  ? _raw_spin_unlock_irq+0x47/0x80
[  140.639429]  ? calculate_sigpending+0x7b/0xa0
[  140.639639]  ? __pfx_kthread+0x10/0x10
[  140.639943]  ret_from_fork+0x116/0x1d0
[  140.640495]  ? __pfx_kthread+0x10/0x10
[  140.640935]  ret_from_fork_asm+0x1a/0x30
[  140.641803]  </TASK>
[  140.641975] ---[ end trace 0000000000000000 ]---