diff --git a/[refs] b/[refs]
index 73541fae3acb..89c05a72d833 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 690dbe1ced143876d8fa56b72310738dbe079d0a
+refs/heads/master: ba17101b41977f124948e0a7797fdcbb59e19f3e
diff --git a/trunk/mm/mempolicy.c b/trunk/mm/mempolicy.c
index 1694845526be..b4eababc8198 100644
--- a/trunk/mm/mempolicy.c
+++ b/trunk/mm/mempolicy.c
@@ -443,7 +443,7 @@ asmlinkage long sys_set_mempolicy(int mode, unsigned long __user *nmask,
 	struct mempolicy *new;
 	DECLARE_BITMAP(nodes, MAX_NUMNODES);
 
-	if (mode > MPOL_MAX)
+	if (mode < 0 || mode > MPOL_MAX)
 		return -EINVAL;
 	err = get_nodes(nodes, nmask, maxnode, mode);
 	if (err)