diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c
index bd0b23ac2cc4..f9458a4d5a09 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_util.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_util.c
@@ -356,6 +356,10 @@ static int ttm_bo_kmap_ttm(struct ttm_buffer_object *bo,
 	if (ret)
 		return ret;
 
+	/* Imported sg tables only come with DMA addresses, no pages to map. */
+	if (!ttm->pages)
+		return -EINVAL;
+
 	if (num_pages == 1 && ttm->caching == ttm_cached &&
 	    !(man->use_tt && (ttm->page_flags & TTM_TT_FLAG_DECRYPTED))) {
 		/*
@@ -419,7 +423,7 @@ EXPORT_SYMBOL(ttm_bo_kmap_try_from_panic);
  *
  * Returns
  * -ENOMEM: Out of memory.
- * -EINVAL: Invalid range.
+ * -EINVAL: Invalid range or the BO has no pages to map.
  */
 int ttm_bo_kmap(struct ttm_buffer_object *bo,
 		unsigned long start_page, unsigned long num_pages,
@@ -493,7 +497,7 @@ EXPORT_SYMBOL(ttm_bo_kunmap);
  *
  * Returns
  * -ENOMEM: Out of memory.
- * -EINVAL: Invalid range.
+ * -EINVAL: Invalid range or the BO has no pages to map.
  */
 int ttm_bo_vmap(struct ttm_buffer_object *bo, struct iosys_map *map)
 {
@@ -537,6 +541,9 @@ int ttm_bo_vmap(struct ttm_buffer_object *bo, struct iosys_map *map)
 		if (ret)
 			return ret;
 
+		if (!ttm->pages)
+			return -EINVAL;
+
 		/*
 		 * We need to use vmap to get the desired page protection
 		 * or to make the buffer object look contiguous.