/* We need to serialize quota_off() for device */
mutex_lock(&dqopt->dqonoff_mutex);
+
+ /*
+ * Skip everything if there's nothing to do. We have to do this because
+ * sometimes we are called when fill_super() failed and calling
+ * sync_fs() in such cases does no good.
+ */
+ if (!sb_any_quota_enabled(sb) && !sb_any_quota_suspended(sb)) {
+ mutex_unlock(&dqopt->dqonoff_mutex);
+ return 0;
+ }
for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
toputinode[cnt] = NULL;
if (type != -1 && cnt != type)