drm/amdgpu: fix ACA bank count boundary check error

[ Upstream commit 2bb7dced1c2f8c0e705cc74840f776406db492c3 ]

fix ACA bank count boundary check error.

Fixes: f5e4cc8461c4 ("drm/amdgpu: implement RAS ACA driver framework")
Signed-off-by: Yang Wang <kevinyang.wang@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_aca.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_aca.c
index 43f3e72fb247a7205bce6831bd066dcc5876d2e1..aa66c501580b98ddcb2b3ae399342de69d65c193 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_aca.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_aca.c
@@ -158,7 +158,7 @@ static int aca_smu_get_valid_aca_banks(struct amdgpu_device *adev, enum aca_smu_
                return -EINVAL;
        }
 
-       if (start + count >= max_count)
+       if (start + count > max_count)
                return -EINVAL;
 
        count = min_t(int, count, max_count);