drm/amdgpu: add check for xcp id

check sel_xcp_id before its use

Signed-off-by: Gangliang Xie <ganglxie@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c
index cf71b4f55252a2be280807b4aa5ab9104ed4763b..7c3e707ff84e11a37647ec4cacf3c45cb372cb38 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c
@@ -576,6 +576,9 @@ static void amdgpu_xcp_gpu_sched_update(struct amdgpu_device *adev,
 {
        unsigned int *num_gpu_sched;
 
+       if (sel_xcp_id >= MAX_XCP || sel_xcp_id == AMDGPU_XCP_NO_PARTITION)
+               return;
+
        num_gpu_sched = &adev->xcp_mgr->xcp[sel_xcp_id]
                        .gpu_sched[ring->funcs->type][ring->hw_prio].num_scheds;
        adev->xcp_mgr->xcp[sel_xcp_id].gpu_sched[ring->funcs->type][ring->hw_prio]