diff options
| author | Alex Hung <[email protected]> | 2024-06-18 22:21:20 +0000 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2024-07-01 20:06:53 +0000 |
| commit | 116a678f3a9abc24f5c9d2525b7393d18d9eb58e (patch) | |
| tree | 5cdcafb0f72ce7a833f411fd48367183c85db6d1 /drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | |
| parent | drm/amd/display: Adjust cursor visibility between MPC slices (diff) | |
| download | kernel-116a678f3a9abc24f5c9d2525b7393d18d9eb58e.tar.gz kernel-116a678f3a9abc24f5c9d2525b7393d18d9eb58e.zip | |
drm/amd/display: Check denominator pbn_div before used
[WHAT & HOW]
A denominator cannot be 0, and is checked before used.
This fixes 1 DIVIDE_BY_ZERO issue reported by Coverity.
Reviewed-by: Harry Wentland <[email protected]>
Signed-off-by: Jerry Zuo <[email protected]>
Signed-off-by: Alex Hung <[email protected]>
Tested-by: Daniel Wheeler <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 0daf2b787d2f..2c96863d320e 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -7561,7 +7561,7 @@ static int dm_update_mst_vcpi_slots_for_dsc(struct drm_atomic_state *state, } } - if (j == dc_state->stream_count) + if (j == dc_state->stream_count || pbn_div == 0) continue; slot_num = DIV_ROUND_UP(pbn, pbn_div); |