Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 1fdf7a4b authored by Vitaly Prosyak's avatar Vitaly Prosyak Committed by Alex Deucher
Browse files

drm/amd/display: Add check for num of entries in gamma 



This check avoids potential bugs related to gamma.

Signed-off-by: default avatarVitaly Prosyak <vitaly.prosyak@amd.com>
Reviewed-by: default avatarCharlene Liu <Charlene.Liu@amd.com>
Acked-by: default avatarBhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent dc6c981d

drivers/gpu/drm/amd/display/modules/color/color_gamma.c

+2 −1
Original line number Diff line number Diff line
@@ -1580,7 +1580,8 @@ bool mod_color_calculate_degamma_params(struct dc_transfer_func *input_tf, 
	/* we can use hardcoded curve for plain SRGB TF */

	if (input_tf->type == TF_TYPE_PREDEFINED &&

			input_tf->tf == TRANSFER_FUNCTION_SRGB &&

			(!mapUserRamp && ramp->type == GAMMA_RGB_256))

			(!mapUserRamp &&

			(ramp->type == GAMMA_RGB_256 || ramp->num_entries == 0)))

		return true;



	input_tf->type = TF_TYPE_DISTRIBUTED_POINTS;