4.4-stable review patch. If anyone has any objections, please let me know.
------------------ From: tom will <[email protected]> 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 <[email protected]> Signed-off-by: Alex Deucher <[email protected]> Cc: Julia Lawall <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/gpu/drm/amd/amdgpu/kv_dpm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- 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( 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;
