-void peap_prfplus(int version, const u8 *key, size_t key_len,
- const char *label, const u8 *seed, size_t seed_len,
- u8 *buf, size_t buf_len)
+int peap_prfplus(int version, const u8 *key, size_t key_len,
+ const char *label, const u8 *seed, size_t seed_len,
+ u8 *buf, size_t buf_len)