@@ -1398,7 +1398,7 @@ static int hws_pga_write(struct intel_vgpu *vgpu, unsigned int offset,
* update the VM CSB status correctly. Here listed registers can
* support BDW, SKL or other platforms with same HWSP registers.
*/
- if (unlikely(ring_id < 0 || ring_id > I915_NUM_ENGINES)) {
+ if (unlikely(ring_id < 0 || ring_id >= I915_NUM_ENGINES)) {
gvt_vgpu_err("VM(%d) access unknown hardware status page register:0x%x\n",
vgpu->id, offset);
return -EINVAL;
@@ -1473,7 +1473,7 @@ static int elsp_mmio_write(struct intel_vgpu *vgpu, unsigned int offset,
u32 data = *(u32 *)p_data;
int ret = 0;
- if (WARN_ON(ring_id < 0 || ring_id > I915_NUM_ENGINES - 1))
+ if (WARN_ON(ring_id < 0 || ring_id >= I915_NUM_ENGINES))
return -EINVAL;
execlist = &vgpu->submission.execlist[ring_id];