fix various issues

Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
diff --git a/library/ssl_tls13_keys.c b/library/ssl_tls13_keys.c
index dd6677d..74b269e 100644
--- a/library/ssl_tls13_keys.c
+++ b/library/ssl_tls13_keys.c
@@ -1511,7 +1511,7 @@
     return( ret );
 }
 
-int mbedtls_ssl_tls13_set_handshake_transform( mbedtls_ssl_context *ssl )
+int mbedtls_ssl_tls13_compute_handshake_transform( mbedtls_ssl_context *ssl )
 {
     int ret;
     mbedtls_ssl_key_set traffic_keys;
@@ -1558,9 +1558,7 @@
 cleanup:
     mbedtls_platform_zeroize( &traffic_keys, sizeof( traffic_keys ) );
     if( ret != 0 )
-    {
         mbedtls_free( transform_handshake );
-    }
 
     return( ret );
 }