diff options
Diffstat (limited to 'sql/debug_sync.cc')
| -rw-r--r-- | sql/debug_sync.cc | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sql/debug_sync.cc b/sql/debug_sync.cc index e50ab0891ed..b1846bc48d5 100644 --- a/sql/debug_sync.cc +++ b/sql/debug_sync.cc @@ -1,4 +1,5 @@ /* Copyright (c) 2009, 2013, Oracle and/or its affiliates. + Copyright (c) 2013, 2020, MariaDB This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -319,7 +320,8 @@ static char *debug_sync_bmove_len(char *to, char *to_end, DBUG_ASSERT(to_end); DBUG_ASSERT(!length || from); set_if_smaller(length, (size_t) (to_end - to)); - memcpy(to, from, length); + if (length) + memcpy(to, from, length); return (to + length); } |