Change cookie free code and some comments
Signed-off-by: XiaokangQian <xiaokang.qian@arm.com>
diff --git a/library/ssl_tls13_client.c b/library/ssl_tls13_client.c
index b8f4bce..75978a8 100644
--- a/library/ssl_tls13_client.c
+++ b/library/ssl_tls13_client.c
@@ -559,6 +559,7 @@
MBEDTLS_SSL_DEBUG_BUF( 3, "cookie extension", p, cookie_len );
mbedtls_free( handshake->verify_cookie );
+ handshake->verify_cookie_len = 0;
handshake->verify_cookie = mbedtls_calloc( 1, cookie_len );
if( handshake->verify_cookie == NULL )
{