drm/ttm: Initialize eviction placement in case the driver callback doesn't

This would allow to catch driver callback error of not properly
setting the eviction placement structure.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@linux.ie>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 640fb265dd5a..cf8834779f55 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -584,6 +584,10 @@ static int ttm_bo_evict(struct ttm_buffer_object *bo, bool interruptible,
         evict_mem = bo->mem;
         evict_mem.mm_node = NULL;
 
+        placement.fpfn = 0;
+        placement.lpfn = 0;
+        placement.num_placement = 0;
+        placement.num_busy_placement = 0;
         bdev->driver->evict_flags(bo, &placement);
         ret = ttm_bo_mem_space(bo, &placement, &evict_mem, interruptible,
                                 no_wait);