diff --git a/mm/compaction.c b/mm/compaction.c
index 15163b4..b9972c0 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -344,7 +344,7 @@
 {
 	int nr_scanned = 0, total_isolated = 0;
 	struct page *cursor, *valid_page = NULL;
-	unsigned long flags;
+	unsigned long flags = 0;
 	bool locked = false;
 	unsigned long blockpfn = *start_pfn;
 
@@ -570,7 +570,7 @@
 	unsigned long nr_scanned = 0, nr_isolated = 0;
 	struct list_head *migratelist = &cc->migratepages;
 	struct lruvec *lruvec;
-	unsigned long flags;
+	unsigned long flags = 0;
 	bool locked = false;
 	struct page *page = NULL, *valid_page = NULL;