[Maria-developers] bzr commit into MariaDB 5.1, with Maria 1.5:maria branch (monty:2807)

[Michael Widenius]

#At lp:maria based on 
revid:kniel...@knielsen-hq.org-20100117084143-u10fexdnq5m0wga8

 2807 Michael Widenius  2010-01-17
      Fixed race condition when innobase_shutdown_for_mysql() was called before 
parser was initialized (as it's initialized on first usage)
      modified:
        storage/xtradb/pars/lexyy.c
        storage/xtradb/pars/pars0lex.l

=== modified file 'storage/xtradb/pars/lexyy.c'
--- a/storage/xtradb/pars/lexyy.c       2010-01-06 12:00:14 +0000
+++ b/storage/xtradb/pars/lexyy.c       2010-01-17 11:41:32 +0000
@@ -2786,8 +2786,10 @@ void
 pars_lexer_close(void)
 /*==================*/
 {
-       yylex_destroy();
-       free(stringbuf);
+        if (yy_buffer_stack)
+          yylex_destroy();
+        if (stringbuf)
+         free(stringbuf);
        stringbuf = NULL;
        stringbuf_len_alloc = stringbuf_len = 0;
 }

=== modified file 'storage/xtradb/pars/pars0lex.l'
--- a/storage/xtradb/pars/pars0lex.l    2010-01-06 12:00:14 +0000
+++ b/storage/xtradb/pars/pars0lex.l    2010-01-17 11:41:32 +0000
@@ -669,8 +669,10 @@ void
 pars_lexer_close(void)
 /*==================*/
 {
-       yylex_destroy();
-       free(stringbuf);
+        if (yy_buffer_stack)
+         yylex_destroy();
+        if (stringbuf)
+         free(stringbuf);
        stringbuf = NULL;
        stringbuf_len_alloc = stringbuf_len = 0;
 }


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