commit 92587dbf2b9c03f7fac62e6b1631e3c24d85ae0c
author Gilles Peskine <Gilles.Peskine@arm.com> Tue Sep 18 12:12:42 2018 +0200
committer Gilles Peskine <Gilles.Peskine@arm.com> Wed Nov 14 21:15:37 2018 +0100
tree 7c022402f567214622814c8a9a47c5d0956bed87
parent c11be0943e0700526df95071208de0fd2d063baf

Write missing bit of the documentation of psa_key_derivation

include/psa/crypto.h

diff --git a/include/psa/crypto.h b/include/psa/crypto.h
index 732bc2f..6efaa02 100644
--- a/include/psa/crypto.h
+++ b/include/psa/crypto.h
@@ -3040,7 +3040,10 @@
  *   and \p label is the info string used in the "expand" step.
  *
  * \param[in,out] generator       The generator object to set up. It must
- *                                have been initialized to .
+ *                                have been initialized to all-bits-zero,
+ *                                a logical zero (`{0}`),
+ *                                \c PSA_CRYPTO_GENERATOR_INIT or
+ *                                psa_crypto_generator_init().
  * \param key                     Slot containing the secret key to use.
  * \param alg                     The key derivation algorithm to compute
  *                                (\c PSA_ALG_XXX value such that