diff options
| author | Charlene Liu <[email protected]> | 2024-10-22 22:42:56 +0000 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2024-11-04 16:33:40 +0000 |
| commit | d1fd30e511a70911151dc9f71c705e1fab175cef (patch) | |
| tree | 50c03b97cd202d78cd6214b49b2743e8b655c811 /drivers/gpu/drm/amd/display/modules/freesync/freesync.c | |
| parent | drm/amd/display: Do Not Fallback To SW Cursor If HW Cursor Required (diff) | |
| download | kernel-d1fd30e511a70911151dc9f71c705e1fab175cef.tar.gz kernel-d1fd30e511a70911151dc9f71c705e1fab175cef.zip | |
drm/amd/display: avoid divided by zero
[why]
insert divided by zero protection
Reviewed-by: Alvin Lee <[email protected]>
Signed-off-by: Charlene Liu <[email protected]>
Signed-off-by: Zaeem Mohamed <[email protected]>
Tested-by: Daniel Wheeler <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/display/modules/freesync/freesync.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/modules/freesync/freesync.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/modules/freesync/freesync.c b/drivers/gpu/drm/amd/display/modules/freesync/freesync.c index fc4268729017..f980a84dceef 100644 --- a/drivers/gpu/drm/amd/display/modules/freesync/freesync.c +++ b/drivers/gpu/drm/amd/display/modules/freesync/freesync.c @@ -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))); |