From 5af0e5b1942ab09f9b28219b7791472e1fb9d7ed Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Manuel=20P=C3=A9gouri=C3=A9-Gonnard?= <mpg@elzevir.fr>
Date: Wed, 25 Jun 2014 13:03:50 +0200
Subject: [PATCH] Document in-out param of dhm_calc_secret()

---
 include/polarssl/dhm.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/polarssl/dhm.h b/include/polarssl/dhm.h
index c6c2d8feb..322a78860 100644
--- a/include/polarssl/dhm.h
+++ b/include/polarssl/dhm.h
@@ -237,7 +237,8 @@ int dhm_make_public( dhm_context *ctx, int x_size,
  *
  * \param ctx      DHM context
  * \param output   destination buffer
- * \param olen     number of chars written
+ * \param olen     on entry, must hold the size of the destination buffer
+ *                 on exit, holds the actual number of bytes written
  * \param f_rng    RNG function, for blinding purposes
  * \param p_rng    RNG parameter
  *