Fix EVP_RAND-SEED-SRC documentation example

Fixes #22810

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/22857)

(cherry picked from commit 58d926213f00ba7046d0868de8b37929aa067a1f)

diff --git a/doc/man7/EVP_RAND-SEED-SRC.pod b/doc/man7/EVP_RAND-SEED-SRC.pod
index 516fa64f577e0ccf9ec117274f550afc569c8ef9..56f4acd2b89770092b615a335e42ccfeffac5ad3 100644 (file)
--- a/doc/man7/EVP_RAND-SEED-SRC.pod
+++ b/doc/man7/EVP_RAND-SEED-SRC.pod
@@ -49,9 +49,10 @@ A context for the seed source can be obtained by calling:
  OSSL_PARAM params[2], *p = params;
  unsigned int strength = 128;
 
- /* Create a seed source */
+ /* Create and instantiate a seed source */
  rand = EVP_RAND_fetch(NULL, "SEED-SRC", NULL);
  seed = EVP_RAND_CTX_new(rand, NULL);
+ EVP_RAND_instantiate(seed, strength, 0, NULL, 0, NULL);
  EVP_RAND_free(rand);
 
  /* Feed this into a DRBG */