Fixed crashes found by application verifier:

- leaking mutex in lf_hash_destroy
- pthread_getspecific() before pthread_key_create() in my_thread_var_dbug()
(called by static C++ object constructors called in sys_vars)
- perfschema destroys mutexes that were  not created.

1 files changed, 4 insertions, 1 deletions

diff --git a/storage/perfschema/pfs_atomic.cc b/storage/perfschema/pfs_atomic.cc
index 3bd744c8ea7..4db807b1d88 100644
--- a/storage/perfschema/pfs_atomic.cc
+++ b/storage/perfschema/pfs_atomic.cc
@@ -61,6 +61,7 @@
   operation.
 */
 my_atomic_rwlock_t PFS_atomic::m_rwlock_array[256];
+static int init_done;
 
 void PFS_atomic::init(void)
 {
@@ -68,12 +69,14 @@ void PFS_atomic::init(void)
 
   for (i=0; i< array_elements(m_rwlock_array); i++)
     my_atomic_rwlock_init(&m_rwlock_array[i]);
+  init_done= 1;
 }
 
 void PFS_atomic::cleanup(void)
 {
   uint i;
-
+  if (!init_done)
+    return;
   for (i=0; i< array_elements(m_rwlock_array); i++)
     my_atomic_rwlock_destroy(&m_rwlock_array[i]);
 }