1 files changed, 2 insertions, 1 deletions

diff --git a/block/blk-stat.c b/block/blk-stat.c
index 0d8721a60db9..188b535cf4d6 100644
--- a/block/blk-stat.c
+++ b/block/blk-stat.c
@@ -210,7 +210,8 @@ static void blk_stat_free_callback_rcu(struct rcu_head *head)
 
 void blk_stat_free_callback(struct blk_stat_callback *cb)
 {
-        call_rcu(&cb->rcu, blk_stat_free_callback_rcu);
+        if (cb)
+                call_rcu(&cb->rcu, blk_stat_free_callback_rcu);
 }
 EXPORT_SYMBOL_GPL(blk_stat_free_callback);