Add a return value to hasher_t.get_hash()

src/libstrongswan/plugins/af_alg/af_alg_hasher.c

@@ -105,10 +105,11 @@ METHOD(hasher_t, reset, void,
 	this->ops->reset(this->ops);
 }
 
-METHOD(hasher_t, get_hash, void,
+METHOD(hasher_t, get_hash, bool,
 	private_af_alg_hasher_t *this, chunk_t chunk, u_int8_t *hash)
 {
 	this->ops->hash(this->ops, chunk, hash, this->size);
+	return TRUE;
 }
 
 METHOD(hasher_t, allocate_hash, void,