From: Alex Hung <[email protected]>

[WHY]
IRQ tests leave vblank active when removing their fake CRTCs, causing
warnings during DRM device teardown.

[HOW]
Turn off initialized vblank before unlinking each test CRTC in the
existing cleanup action.

Assisted-by: Copilot:GPT-6-Astra
Reviewed-by: Bhawanpreet Lakha <[email protected]>
Signed-off-by: Alex Hung <[email protected]>
Signed-off-by: George Zhang <[email protected]>
---
 .../gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_irq_test.c   | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_irq_test.c 
b/drivers/gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_irq_test.c
index 72207eb4e076..c130f0d07315 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_irq_test.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_irq_test.c
@@ -480,6 +480,9 @@ static void dm_test_crtc_list_del(void *data)
 {
        struct amdgpu_crtc *acrtc = data;
 
+       if (acrtc->base.dev && drm_dev_has_vblank(acrtc->base.dev))
+               drm_crtc_vblank_off(&acrtc->base);
+
        list_del_init(&acrtc->base.head);
 }
 
-- 
2.55.0

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