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Subject[PATCH 4.19 060/101] drm/i915/gvt: do not deliver a workload if its creation fails
Date
From: Yan Zhao <yan.y.zhao@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: stable@vger.kernel.org #4.19+
Cc: zhenyuw@linux.intel.com
Signed-off-by: Yan Zhao <yan.y.zhao@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@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);
}

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