1 files changed, 3 insertions, 0 deletions

diff --git a/block/blk-throttle.c b/block/blk-throttle.c
index 9273d0969ebd..5b9c6d5c3636 100644
--- a/block/blk-throttle.c
+++ b/block/blk-throttle.c
@@ -1292,6 +1292,9 @@ static u64 tg_prfill_cpu_rwstat(struct seq_file *sf,
         struct blkg_rwstat rwstat = { }, tmp;
         int i, cpu;
 
+        if (tg->stats_cpu == NULL)
+                return 0;
+
         for_each_possible_cpu(cpu) {
                 struct tg_stats_cpu *sc = per_cpu_ptr(tg->stats_cpu, cpu);