diff --git a/drivers/gpu/drm/tegra/gem.c b/drivers/gpu/drm/tegra/gem.c
index 3922424b..e6c13ee2 100644
--- a/drivers/gpu/drm/tegra/gem.c
+++ b/drivers/gpu/drm/tegra/gem.c
@@ -91,6 +91,7 @@ static struct host1x_bo_mapping *tegra_bo_pin(struct device *dev, struct host1x_
 		if (IS_ERR(map->sgt)) {
 			dma_buf_detach(buf, map->attach);
 			err = PTR_ERR(map->sgt);
+			map->sgt = NULL;
 			goto free;
 		}