[PATCH] buglet in radix_tree_tag_set

[powerpc.git] / lib / radix-tree.c

diff --git a/lib/radix-tree.c b/lib/radix-tree.c
index 7cbdada..b32efae 100644 (file)
--- a/lib/radix-tree.c
+++ b/lib/radix-tree.c
@@ -389,8 +389,7 @@ void *radix_tree_tag_set(struct radix_tree_root *root,
        struct radix_tree_node *slot;
 
        height = root->height;
-       if (index > radix_tree_maxindex(height))
-               return NULL;
+       BUG_ON(index > radix_tree_maxindex(height));
 
        slot = root->rnode;
        shift = (height - 1) * RADIX_TREE_MAP_SHIFT;