rgw: fix off-by-one in RGWDataChangesLog::get_info

Fixes: http://tracker.ceph.com/issues/18488
Signed-off-by: Casey Bodley <cbodley@redhat.com>
(cherry picked from commit a0974fdcf62e60cf31bc15588e7b718da6f6ade3)

diff --git a/src/rgw/rgw_bucket.cc b/src/rgw/rgw_bucket.cc
index c375f2dcf3195f8d765a188e5bc945fdf1a4b423..9e9c17c3099da4b2e2179ae0ee47ec6671435bb2 100644 (file)
--- a/src/rgw/rgw_bucket.cc
+++ b/src/rgw/rgw_bucket.cc
@@ -1799,7 +1799,7 @@ int RGWDataChangesLog::list_entries(const real_time& start_time, const real_time
 
 int RGWDataChangesLog::get_info(int shard_id, RGWDataChangesLogInfo *info)
 {
-  if (shard_id > num_shards)
+  if (shard_id >= num_shards)
     return -EINVAL;
 
   string oid = oids[shard_id];