text: /* LibTomCrypt, modular cryptographic library -- Tom St Denis
   *
   * LibTomCrypt is a library that provides various cryptographic
   * algorithms in a highly modular and flexible manner.
   *
   * The library is free for all purposes without any express
   * guarantee it works.
   */
  #include "tomcrypt.h"
  
  /**
    @file crypt_unregister_prng.c
    Unregister a PRNG, Tom St Denis
  */
  
  /**
    Unregister a PRNG from the descriptor table
    @param prng   The PRNG descriptor to remove
    @return CRYPT_OK on success
  */
  int unregister_prng(const struct ltc_prng_descriptor *prng)
  {
     int x;
  
     LTC_ARGCHK(prng != NULL);
  
     /* is it already registered? */
     LTC_MUTEX_LOCK(&ltc_prng_mutex);
     for (x = 0; x < TAB_SIZE; x++) {
         if (XMEMCMP(&prng_descriptor[x], prng, sizeof(struct ltc_prng_descriptor)) == 0) {
            prng_descriptor[x].name = NULL;
            LTC_MUTEX_UNLOCK(&ltc_prng_mutex);
            return CRYPT_OK;
         }
     }
     LTC_MUTEX_UNLOCK(&ltc_prng_mutex);
     return CRYPT_ERROR;
  }
  
  /* ref:         HEAD -> master, tag: v1.18.2 */
  /* git commit:  7e7eb695d581782f04b24dc444cbfde86af59853 */
  /* commit time: 2018-07-01 22:49:01 +0200 */
  