drm/amd/display: Validate irq source in DM IRQ handler

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[Why]
dc_interrupt_to_irq_source() can return DC_IRQ_SOURCE_INVALID for an
unmapped src_id/src_data pair. The value was passed straight to
dc_interrupt_ack() and used to index the DM high/low handler tables.

[How]
Reject sources outside the valid range before using them.

Reviewed-by: Roman Li <roman.li@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

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Alex Hung 2026-08-27 16:36:56 -06:00 • committed by Alex Deucher

parent 094901372a

commit 7aa0380017

1 changed files with 5 additions and 0 deletions

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drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.c

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