parser: fix error reporting

1 files changed, 5 insertions, 2 deletions

diff --git a/parser.y b/parser.y
index e3b9ee9..54c6077 100644
--- a/parser.y
+++ b/parser.y
@@ -58,7 +58,7 @@ struct jp_opcode {
 struct jp_state {
 	struct jp_opcode *pool;
 	struct jp_opcode *path;
-	const char *error;
+	char *error;
 	char str_quote;
 	char str_buf[128];
 	char *str_ptr;
@@ -167,7 +167,7 @@ unary_exp
 void
 yyerror(struct jp_state *s, const char *msg)
 {
-	s->error = msg;
+	s->error = strdup(msg);
 }
 
 static struct jp_opcode *
@@ -253,5 +253,8 @@ jp_free(struct jp_state *s)
 		op = tmp;
 	}
 
+	if (s->error)
+		free(s->error);
+
 	free(s);
 }