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-rw-r--r--fs/quota/dquot.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index ba827daea5a0..ff21980d0119 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -2047,11 +2047,20 @@ int dquot_get_next_id(struct super_block *sb, struct kqid *qid)
struct quota_info *dqopt = sb_dqopt(sb);
int err;
- if (!dqopt->ops[qid->type]->get_next_id)
- return -ENOSYS;
+ mutex_lock(&dqopt->dqonoff_mutex);
+ if (!sb_has_quota_active(sb, qid->type)) {
+ err = -ESRCH;
+ goto out;
+ }
+ if (!dqopt->ops[qid->type]->get_next_id) {
+ err = -ENOSYS;
+ goto out;
+ }
mutex_lock(&dqopt->dqio_mutex);
err = dqopt->ops[qid->type]->get_next_id(sb, qid);
mutex_unlock(&dqopt->dqio_mutex);
+out:
+ mutex_unlock(&dqopt->dqonoff_mutex);
return err;
}