parser: free unused message token strings

In qmi_parse(), when a message token is recognized its token
structure will contain a dynamically-allocated string continaing the
message name.  We only use the message identifier (number) though,
and as a result the message name gets leaked.  Fix this by freeing
the type token string if no-null.

Signed-off-by: Alex Elder <elder@linaro.org>
Message-Id: <20211001232338.769309-7-elder@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/parser.c b/parser.c
index fe645f4..a1b275f 100644
--- a/parser.c
+++ b/parser.c
@@ -419,6 +419,7 @@ void qmi_parse(void)
 			qmi_struct_parse();
 		} else if (token_accept(TOK_MESSAGE, &tok)) {
 			qmi_message_parse(tok.num);
+			free(tok.str);
 		} else {
 			yyerror("unexpected symbol");
 			break;