1 files changed, 5 insertions, 0 deletions

diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index 16ace89613b..3beed83437a 100644
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -4036,6 +4036,11 @@ static void *cfq_init_queue(struct request_queue *q)
 
         if (blkio_alloc_blkg_stats(&cfqg->blkg)) {
                 kfree(cfqg);
+
+                spin_lock(&cic_index_lock);
+                ida_remove(&cic_index_ida, cfqd->cic_index);
+                spin_unlock(&cic_index_lock);
+
                 kfree(cfqd);
                 return NULL;
         }