drm/amd/display: Test modifier list growth failure

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[WHAT]
Add a KUnit test for amdgpu_dm_plane_add_modifier() covering the
allocation failure that happens while growing the modifier list.

[HOW]
Seed a capacity whose doubling overflows the kmalloc_array() size
product, so the allocation fails without fault injection, and assert
the list is released and cleared for the caller.

Assisted-by: Copilot:Claude-Opus-5
Reviewed-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Chenyu Chen <chen-yu.chen@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

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Alex Hung 2026-08-29 13:38:18 -06:00 • committed by Alex Deucher

parent 80065ab5bc

commit 9e7ed95bfd

1 changed files with 23 additions and 0 deletions

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drivers/gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_plane_test.c

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