runtime: Enhance the error handling when flush gpgpu command queue.

Beignet uses drm_intel_gem_bo_context_exec() to flush command queue to
linux drm driver layer. We need to check the return value of that function,
as it may fail when the application uses very large array.

Signed-off-by: Zhigang Gong <zhigang.gong@intel.com>
Reviewed-by: "Yang, Rong R" <rong.r.yang@intel.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/src/cl_event.c b/src/cl_event.c
index bba14bac..b4734b22 100644
--- a/src/cl_event.c
+++ b/src/cl_event.c
@@ -46,16 +46,18 @@ cl_event_is_gpu_command_type(cl_command_type type)
   }
 }
 
-void cl_event_flush(cl_event event)
+int cl_event_flush(cl_event event)
 {
+  int err = CL_SUCCESS;
   assert(event->gpgpu_event != NULL);
   if (event->gpgpu) {
-    cl_command_queue_flush_gpgpu(event->queue, event->gpgpu);
+    err = cl_command_queue_flush_gpgpu(event->queue, event->gpgpu);
     cl_gpgpu_delete(event->gpgpu);
     event->gpgpu = NULL;
   }
   cl_gpgpu_event_flush(event->gpgpu_event);
   event->queue->last_event = event;
+  return err;
 }
 
 cl_event cl_event_new(cl_context ctx, cl_command_queue queue, cl_command_type type, cl_bool emplict)