1 files changed, 2 insertions, 0 deletions

diff --git a/fs/quota/quota.c b/fs/quota/quota.c
index cfc78826da90..4669e7e639bd 100644
--- a/fs/quota/quota.c
+++ b/fs/quota/quota.c
@@ -59,6 +59,8 @@ static int quota_sync_all(int type)
         spin_lock(&sb_lock);
 restart:
         list_for_each_entry(sb, &super_blocks, s_list) {
+                if (list_empty(&sb->s_instances))
+                        continue;
                 if (!sb->s_qcop || !sb->s_qcop->quota_sync)
                         continue;