Fix missing calls to md/shaxxx_free()
diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index 01fee4b..b89be37 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -6501,6 +6501,20 @@
if( handshake == NULL )
return;
+#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
+ defined(MBEDTLS_SSL_PROTO_TLS1_1)
+ mbedtls_md5_free( &handshake->fin_md5 );
+ mbedtls_sha1_free( &handshake->fin_sha1 );
+#endif
+#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
+#if defined(MBEDTLS_SHA256_C)
+ mbedtls_sha256_free( &handshake->fin_sha256 );
+#endif
+#if defined(MBEDTLS_SHA512_C)
+ mbedtls_sha512_free( &handshake->fin_sha512 );
+#endif
+#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
+
#if defined(MBEDTLS_DHM_C)
mbedtls_dhm_free( &handshake->dhm_ctx );
#endif