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authorAlex Hung <alex.hung@amd.com>2024-06-18 14:05:08 -0600
committerAlex Deucher <alexander.deucher@amd.com>2024-07-23 17:07:10 -0400
commitb995c0a6de6c74656a0c39cd57a0626351b13e3c (patch)
treea0e66f00c50ae28192cc340a2719752fa72ae89d /drivers/gpu/drm/amd/display/dc/dml2
parentf60881ca126cf825b89b4118e93dbd82ea9bcf33 (diff)
drm/amd/display: Initialize denominators' default to 1
[WHAT & HOW] Variables used as denominators and maybe not assigned to other values, should not be 0. Change their default to 1 so they are never 0. This fixes 10 DIVIDE_BY_ZERO issues reported by Coverity. Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Jerry Zuo <jerry.zuo@amd.com> Signed-off-by: Alex Hung <alex.hung@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dml2')
-rw-r--r--drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_core/dml2_core_shared.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_core/dml2_core_shared.c b/drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_core/dml2_core_shared.c
index 81f0a6f19f87..679b20031903 100644
--- a/drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_core/dml2_core_shared.c
+++ b/drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_core/dml2_core_shared.c
@@ -9386,8 +9386,8 @@ static void CalculateVMGroupAndRequestTimes(
double TimePerVMRequestVBlank[],
double TimePerVMRequestFlip[])
{
- unsigned int num_group_per_lower_vm_stage = 0;
- unsigned int num_req_per_lower_vm_stage = 0;
+ unsigned int num_group_per_lower_vm_stage = 1;
+ unsigned int num_req_per_lower_vm_stage = 1;
#ifdef __DML_VBA_DEBUG__
dml2_printf("DML::%s: NumberOfActiveSurfaces = %u\n", __func__, NumberOfActiveSurfaces);