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(parent: 8a30777) | patch
drm/amd/display: Validate hw_points_num before using it
authorAlex Hung <alex.hung@amd.com>
Tue, 11 Jul 2023 00:23:58 +0000 (18:23 -0600)
committerAlex Deucher <alexander.deucher@amd.com>
Tue, 3 Oct 2023 19:42:26 +0000 (15:42 -0400)
commit58c3b3341cea4f75dc8c003b89f8a6dd8ec55e50
tree3c925f15cdee90ff2735ae6961243c7b44a1379btree | snapshot
parent8a307777c36e15f38c9f23778babcd368144c7d8commit | diff
drm/amd/display: Validate hw_points_num before using it

[WHAT]
hw_points_num is 0 before ogam LUT is programmed; however, function
"dwb3_program_ogam_pwl" assumes hw_points_num is always greater than 0,
i.e. substracting it by 1 as an array index.

[HOW]
Check hw_points_num is not equal to 0 before using it.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/amd/display/dc/dcn30/dcn30_dwb_cm.c diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)