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drm/amdgpu: fix array out of bounds

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When the initial value of i is greater than zero,
it may cause endless loop, resulting in array out
of bounds, fix it.

This is a port of the radeon fix to amdgpu.

Signed-off-by: tom will <os@iscas.ac.cn>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
tom will 2016-05-16 10:31:07 -04:00 committed by Alex Deucher
parent a8efd58815
commit 484f689fc9
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/amd/amdgpu/kv_dpm.c
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@ -2252,7 +2252,7 @@ static void kv_apply_state_adjust_rules(struct amdgpu_device *adev,
if (pi->caps_stable_p_state) {
stable_p_state_sclk = (max_limits->sclk * 75) / 100;
for (i = table->count - 1; i >= 0; i++) {
for (i = table->count - 1; i >= 0; i--) {
if (stable_p_state_sclk >= table->entries[i].clk) {
stable_p_state_sclk = table->entries[i].clk;
break;