Commit 99e96ce5 authored May 16, 2016 by tom will Committed by Greg Kroah-Hartman May 02, 2017

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 <os@iscas.ac.cn>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 10fc325c

drivers/gpu/drm/amd/amdgpu/kv_dpm.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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;