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Fix more bugs (mostly possible NULL pointer dereferences)

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This commit is contained in:
Dale Weiler 2013-06-21 23:26:49 +00:00
parent 996d998ebb
commit fe296de42f
3 changed files with 4 additions and 3 deletions
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2
ast.c
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@ -1563,7 +1563,7 @@ bool ast_global_codegen(ast_value *self, ir_builder *ir, bool isfield)
return true;
error: /* clean up */
ir_value_delete(v);
if(v) ir_value_delete(v);
return false;
}

2
main.c
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@ -791,7 +791,7 @@ cleanup:
vec_free(ppems);
if (!OPTS_OPTION_BOOL(OPTION_PP_ONLY))
parser_cleanup(parser);
if(parser) parser_cleanup(parser);
if (opts_output_free)
mem_d(OPTS_OPTION_STR(OPTION_OUTPUT));
if (operators_free)

3
parser.c
View file

@ -3622,7 +3622,8 @@ static bool parse_goto(parser_t *parser, ast_expression **out)
if (!(expression = parse_expression(parser, false, true)) ||
!(*out = parse_goto_computed(parser, &expression))) {
parseerror(parser, "invalid goto expression");
ast_unref(expression);
if(expression)
ast_unref(expression);
return false;
}