------------[ cut here ]------------
[  184.224517] WARNING: CPU: 1 PID: 2810 at drivers/gpu/drm/drm_framebuffer.c:832 drm_framebuffer_free+0x1e0/0x28c
[  184.234771] drm-kunit-mock-device drm_test_framebuffer_free.drm-kunit-mock-device: [drm] drm_WARN_ON(!list_empty(&fb->filp_head))
[  184.234802] Modules linked in:
[  184.249603] CPU: 1 UID: 0 PID: 2810 Comm: kunit_try_catch Tainted: G    B D W        N  6.15.0-next-20250530 #1 NONE 
[  184.249633] Tainted: [B]=BAD_PAGE, [D]=DIE, [W]=WARN, [N]=TEST
[  184.249664] Hardware name: Generic DRA74X (Flattened Device Tree)
[  184.249664] Call trace: 
[  184.249664]  unwind_backtrace from show_stack+0x18/0x1c
[  184.249694]  show_stack from dump_stack_lvl+0x70/0x90
[  184.249725]  dump_stack_lvl from __warn+0x154/0x2e0
[  184.249755]  __warn from warn_slowpath_fmt+0x200/0x258
[  184.249786]  warn_slowpath_fmt from drm_framebuffer_free+0x1e0/0x28c
[  184.249786]  drm_framebuffer_free from drm_test_framebuffer_free+0x1fc/0x5b8
[  184.249816]  drm_test_framebuffer_free from kunit_try_run_case+0x22c/0x5a8
[  184.249847]  kunit_try_run_case from kunit_generic_run_threadfn_adapter+0xc4/0x128
[  184.249877]  kunit_generic_run_threadfn_adapter from kthread+0x464/0x810
[  184.249908]  kthread from ret_from_fork+0x14/0x20
[  184.249908] Exception stack(0xf182bfb0 to 0xf182bff8)
[  184.249938] bfa0:                                     00000000 00000000 00000000 00000000
[  184.249938] bfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[  184.249938] bfe0: 00000000 00000000 00000000 00000000 00000013 00000000
[  184.249969] ---[ end trace 0000000000000000 ]---