[openssl/openssl] 1ae2bb: Fix error handling in lhash contract

[Bernd Edlinger]

  Branch: refs/heads/openssl-3.1
  Home:   https://github.com/openssl/openssl
  Commit: 1ae2bb26d3beb9de6fa5edfa198cf86e138c00d8
      https://github.com/openssl/openssl/commit/1ae2bb26d3beb9de6fa5edfa198cf86e138c00d8
  Author: Bernd Edlinger <bernd.edlinger at hotmail.de>
  Date:   2023-09-21 (Thu, 21 Sep 2023)

  Changed paths:
    M crypto/lhash/lhash.c

  Log Message:
  -----------
  Fix error handling in lhash contract

When the realloc fails in contract, this not a fatal
error, since the memory is only shrinked. It is also no
option to exit the function at this point, since that
would leave the hash table in an inconsistent state.

Reviewed-by: Tomas Mraz <tomas at openssl.org>
Reviewed-by: Paul Dale <pauli at openssl.org>
(Merged from https://github.com/openssl/openssl/pull/22154)

(cherry picked from commit 5fbfd641aeebdf4b29a0749e13a79a1e59502878)