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-rw-r--r--sql/sql_error.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/sql/sql_error.cc b/sql/sql_error.cc
index 4045f30a6bd..e5dda9904d2 100644
--- a/sql/sql_error.cc
+++ b/sql/sql_error.cc
@@ -947,7 +947,7 @@ size_t convert_error_message(char *to, size_t to_length, CHARSET_INFO *to_cs,
/* Make room for the null terminator. */
to_length--;
- if (to_cs == &my_charset_bin)
+ if (!to_cs || to_cs == &my_charset_bin)
to_cs= system_charset_info;
uint32 cnv_length= my_convert_using_func(to, to_length,
to_cs,