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-rw-r--r--sql/ha_blackhole.cc3
1 files changed, 2 insertions, 1 deletions
diff --git a/sql/ha_blackhole.cc b/sql/ha_blackhole.cc
index 7c6e7cb56b6..c9c94b3a9d7 100644
--- a/sql/ha_blackhole.cc
+++ b/sql/ha_blackhole.cc
@@ -129,8 +129,9 @@ THR_LOCK_DATA **ha_blackhole::store_lock(THD *thd,
THR_LOCK_DATA **to,
enum thr_lock_type lock_type)
{
+ if (lock_type != TL_IGNORE && lock.type == TL_UNLOCK)
+ lock.type=lock_type;
*to++= &lock;
-
return to;
}