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-rw-r--r--arch/x86/mm/pat_rbtree.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/x86/mm/pat_rbtree.c b/arch/x86/mm/pat_rbtree.c
index 9063f40b638..07de4cb8cc3 100644
--- a/arch/x86/mm/pat_rbtree.c
+++ b/arch/x86/mm/pat_rbtree.c
@@ -223,7 +223,9 @@ int rbt_memtype_check_insert(struct memtype *new, unsigned long *ret_type)
new->type, ret_type);
if (!err) {
- new->type = *ret_type;
+ if (ret_type)
+ new->type = *ret_type;
+
memtype_rb_insert(&memtype_rbroot, new);
}
return err;