rpc: Add a comment why we call _get_attribute() twice

diff --git a/p11-kit/rpc-server.c b/p11-kit/rpc-server.c
index dec9b0bf9eb3b30f105a9a637c496eb5098bb21b..1eebf1bf02d713580acfd059c02ff9ee938435f9 100644 (file)
--- a/p11-kit/rpc-server.c
+++ b/p11-kit/rpc-server.c
@@ -305,6 +305,7 @@ proto_read_attribute_array (p11_rpc_message *msg,
                size_t offset = msg->parsed;
                CK_ATTRIBUTE temp;
 
+               /* Check the length needed to store the value */
                memset (&temp, 0, sizeof (temp));
                if (!p11_rpc_buffer_get_attribute (msg->input, &offset, &temp)) {
                        msg->parsed = offset;