drm/amd/display: Avoid overflow from uint32_t to uint8_t

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[WHAT & HOW]
dmub_rb_cmd's ramping_boundary has size of uint8_t and it is assigned
0xFFFF. Fix it by changing it to uint8_t with value of 0xFF.

This fixes 2 INTEGER_OVERFLOW issues reported by Coverity.

Reviewed-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com>
Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Signed-off-by: Alex Hung <alex.hung@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 2024-05-31 11:51:26 -06:00 • committed by Alex Deucher

parent cc2b7387c1

commit d6b54900c5

2 changed files with 2 additions and 2 deletions

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2

drivers/gpu/drm/amd/display/dc/dce/dmub_abm_lcd.c

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2

drivers/gpu/drm/amd/display/dc/hwss/dcn21/dcn21_hwseq.c

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