Fix galera test failures.

mariadb-SachinSetiya · mariadb-SachinSetiya · commit 10d7a2f8e0e9 · 2017-05-08T16:00:23.000+05:30
diff --git a/sql/sql_class.cc b/sql/sql_class.cc
@@ -2177,7 +2177,7 @@ bool THD::notify_shared_lock(MDL_context_owner *ctx_in_use,
 #ifdef WITH_WSREP
         {
           signalled|= mysql_lock_abort_for_thread(this, thd_table);
-          if (WSREP(this) && wsrep_thd_is_BF((void *)this, FALSE))
+          if (this && WSREP(this) && wsrep_thd_is_BF((void *)this, FALSE))
           {
             WSREP_DEBUG("remove_table_from_cache: %llu",
                         (unsigned long long) this->real_id);

Original file line number	Diff line number	Diff line change
`@@ -2177,7 +2177,7 @@ bool THD::notify_shared_lock(MDL_context_owner *ctx_in_use,`
`2177`	`2177`	`#ifdef WITH_WSREP`
`2178`	`2178`	`{`
`2179`	`2179`	`signalled\|= mysql_lock_abort_for_thread(this, thd_table);`
`2180`		`- if (WSREP(this) && wsrep_thd_is_BF((void *)this, FALSE))`
	`2180`	`+ if (this && WSREP(this) && wsrep_thd_is_BF((void *)this, FALSE))`
`2181`	`2181`	`{`
`2182`	`2182`	`WSREP_DEBUG("remove_table_from_cache: %llu",`
`2183`	`2183`	`(unsigned long long) this->real_id);`