drm/amdgpu: Return -EINVAL when MMSCH init status incorrect

Return -EINVAL when MMSCH init fail which can be handle by function
amdgpu_device_reset_sriov correctly.
Signed-off-by: Lin.Cao <lincao12@amd.com>
Reviewed-by: Jingwen Chen <Jingwen.Chen2@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/jpeg_v4_0.c

@@ -518,8 +518,11 @@ static int jpeg_v4_0_start_sriov(struct amdgpu_device *adev)
 			return -EBUSY;
 		}
 	}
-	if (resp != expected && resp != MMSCH_VF_MAILBOX_RESP__INCOMPLETE && init_status != MMSCH_VF_ENGINE_STATUS__PASS)
+	if (resp != expected && resp != MMSCH_VF_MAILBOX_RESP__INCOMPLETE
+			&& init_status != MMSCH_VF_ENGINE_STATUS__PASS) {
 		DRM_ERROR("MMSCH init status is incorrect! readback=0x%08x, header init status for jpeg: %x\n", resp, init_status);
+		return -EINVAL;
+	}
 
 	return 0;