[PATCH 4.19 060/101] drm/i915/gvt: do not deliver a workload if its creation fails

[Greg Kroah-Hartman]

From: Yan Zhao <yan.y.z...@intel.com>

commit dade58ed5af6365ac50ff4259c2a0bf31219e285 upstream.

in workload creation routine, if any failure occurs, do not queue this
workload for delivery. if this failure is fatal, enter into failsafe
mode.

Fixes: 6d76303553ba ("drm/i915/gvt: Move common vGPU workload creation into 
scheduler.c")
Cc: sta...@vger.kernel.org #4.19+
Cc: zhen...@linux.intel.com
Signed-off-by: Yan Zhao <yan.y.z...@intel.com>
Signed-off-by: Zhenyu Wang <zhen...@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
 drivers/gpu/drm/i915/gvt/scheduler.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

--- a/drivers/gpu/drm/i915/gvt/scheduler.c
+++ b/drivers/gpu/drm/i915/gvt/scheduler.c
@@ -1389,8 +1389,9 @@ intel_vgpu_create_workload(struct intel_
                intel_runtime_pm_put(dev_priv);
        }
 
-       if (ret && (vgpu_is_vm_unhealthy(ret))) {
-               enter_failsafe_mode(vgpu, GVT_FAILSAFE_GUEST_ERR);
+       if (ret) {
+               if (vgpu_is_vm_unhealthy(ret))
+                       enter_failsafe_mode(vgpu, GVT_FAILSAFE_GUEST_ERR);
                intel_vgpu_destroy_workload(workload);
                return ERR_PTR(ret);
        }