diff --git a/[refs] b/[refs]
index 8b73871fe179..3591b133a2b4 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: d0962936bff659d20522555b517582a2715fd23f
+refs/heads/master: ecb178bb2b154a40cfae9fa4c42e62ccfa81ac6b
diff --git a/trunk/drivers/md/md.c b/trunk/drivers/md/md.c
index 21a90efb13b7..b572e1e386ce 100644
--- a/trunk/drivers/md/md.c
+++ b/trunk/drivers/md/md.c
@@ -8021,7 +8021,7 @@ void md_ack_all_badblocks(struct badblocks *bb)
 		return;
 	write_seqlock_irq(&bb->lock);
 
-	if (bb->changed == 0) {
+	if (bb->changed == 0 && bb->unacked_exist) {
 		u64 *p = bb->page;
 		int i;
 		for (i = 0; i < bb->count ; i++) {