From 99e96ce5e3153b3543152d33b5773f34003a8892 Mon Sep 17 00:00:00 2001 From: tom will Date: Mon, 16 May 2016 10:31:07 -0400 Subject: [PATCH] drm/amdgpu: fix array out of bounds commit 484f689fc9d4eb91c68f53e97dc355b1b06c3edb upstream. 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 Signed-off-by: Alex Deucher Cc: Julia Lawall Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/amd/amdgpu/kv_dpm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/kv_dpm.c b/drivers/gpu/drm/amd/amdgpu/kv_dpm.c index 7e9154c7f1db..d1c9525d81eb 100644 --- a/drivers/gpu/drm/amd/amdgpu/kv_dpm.c +++ b/drivers/gpu/drm/amd/amdgpu/kv_dpm.c @@ -2258,7 +2258,7 @@ 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; -- 2.34.1