Add comment on the meaning of ssl->in_offt == NULL
@@ -6849,6 +6849,7 @@ int mbedtls_ssl_read( mbedtls_ssl_context *ssl, unsigned char *buf, size_t len )
* ssl->keep_current_message = 0 below.
*/
+ /* Loop as long as no application data record is available */
while( ssl->in_offt == NULL )
{
/* Start timer if not already running */
