From: Wu Fengguang <wfg@mail.ustc.edu.cn>

In radix_tree_tag_get(), return normalized value of 0/1, as indicated
by its comment.

Signed-off-by: Wu Fengguang <wfg@mail.ustc.edu.cn>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---

 lib/radix-tree.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff -puN lib/radix-tree.c~radixtree-normalize-radix_tree_tag_get-return-value lib/radix-tree.c
--- a/lib/radix-tree.c~radixtree-normalize-radix_tree_tag_get-return-value
+++ a/lib/radix-tree.c
@@ -581,7 +581,7 @@ int radix_tree_tag_get(struct radix_tree
 			int ret = tag_get(slot, tag, offset);
 
 			BUG_ON(ret && saw_unset_tag);
-			return ret;
+			return !!ret;
 		}
 		slot = slot->slots[offset];
 		shift -= RADIX_TREE_MAP_SHIFT;
_