Add a return value to prf_t.allocate_bytes()

src/libstrongswan/plugins/af_alg/af_alg_prf.c

@@ -112,18 +112,15 @@ METHOD(prf_t, get_bytes, bool,
 	return TRUE;
 }
 
-METHOD(prf_t, allocate_bytes, void,
+METHOD(prf_t, allocate_bytes, bool,
 	private_af_alg_prf_t *this, chunk_t seed, chunk_t *chunk)
 {
 	if (chunk)
 	{
 		*chunk = chunk_alloc(this->block_size);
-		get_bytes(this, seed, chunk->ptr);
-	}
-	else
-	{
-		get_bytes(this, seed, NULL);
+		return get_bytes(this, seed, chunk->ptr);
 	}
+	return get_bytes(this, seed, NULL);
 }
 
 METHOD(prf_t, get_block_size, size_t,

src/libstrongswan/plugins/fips_prf/fips_prf.c

@@ -147,11 +147,11 @@ METHOD(prf_t, get_block_size, size_t,
 {
 	return 2 * this->b;
 }
-METHOD(prf_t, allocate_bytes, void,
+METHOD(prf_t, allocate_bytes, bool,
 	private_fips_prf_t *this, chunk_t seed, chunk_t *chunk)
 {
 	*chunk = chunk_alloc(get_block_size(this));
-	get_bytes(this, seed, chunk->ptr);
+	return get_bytes(this, seed, chunk->ptr);
 }
 
 METHOD(prf_t, get_key_size, size_t,

src/libstrongswan/plugins/openssl/openssl_sha1_prf.c

@@ -60,18 +60,15 @@ METHOD(prf_t, get_block_size, size_t,
 	return HASH_SIZE_SHA1;
 }
 
-METHOD(prf_t, allocate_bytes, void,
+METHOD(prf_t, allocate_bytes, bool,
 	private_openssl_sha1_prf_t *this, chunk_t seed, chunk_t *chunk)
 {
 	if (chunk)
 	{
 		*chunk = chunk_alloc(HASH_SIZE_SHA1);
-		get_bytes(this, seed, chunk->ptr);
-	}
-	else
-	{
-		get_bytes(this, seed, NULL);
+		return get_bytes(this, seed, chunk->ptr);
 	}
+	return get_bytes(this, seed, NULL);
 }
 
 METHOD(prf_t, get_key_size, size_t,

src/libstrongswan/plugins/sha1/sha1_prf.c

@@ -81,11 +81,11 @@ METHOD(prf_t, get_block_size, size_t,
 	return HASH_SIZE_SHA1;
 }
 
-METHOD(prf_t, allocate_bytes, void,
+METHOD(prf_t, allocate_bytes, bool,
 	private_sha1_prf_t *this, chunk_t seed, chunk_t *chunk)
 {
 	*chunk = chunk_alloc(HASH_SIZE_SHA1);
-	get_bytes(this, seed, chunk->ptr);
+	return get_bytes(this, seed, chunk->ptr);
 }
 
 METHOD(prf_t, get_key_size, size_t,