Commit d1fd30e5 authored by Charlene Liu's avatar Charlene Liu Committed by Alex Deucher
Browse files

drm/amd/display: avoid divided by zero 



[why]
insert divided by zero protection

Reviewed-by: default avatarAlvin Lee <alvin.lee2@amd.com>
Signed-off-by: default avatarCharlene Liu <Charlene.Liu@amd.com>
Signed-off-by: default avatarZaeem Mohamed <zaeem.mohamed@amd.com>
Tested-by: default avatarDaniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent d29bd94c

drivers/gpu/drm/amd/display/modules/freesync/freesync.c

+3 −0
Original line number Diff line number Diff line
@@ -129,6 +129,9 @@ unsigned int mod_freesync_calc_v_total_from_refresh( 
	unsigned int v_total;

	unsigned int frame_duration_in_ns;



	if (refresh_in_uhz == 0)

		return stream->timing.v_total;



	frame_duration_in_ns =

			((unsigned int)(div64_u64((1000000000ULL * 1000000),

					refresh_in_uhz)));