Index: uspace/lib/crypto/rc4.c
===================================================================
--- uspace/lib/crypto/rc4.c	(revision 8a64320e304a59746f5987caeba986e6baf11dd7)
+++ uspace/lib/crypto/rc4.c	(revision a53ed3a8097360ccf174e8d94fb407db919eb66a)
@@ -88,5 +88,5 @@
  *
  */
-int rc4(uint8_t *key, size_t key_size, uint8_t *input, size_t input_size,
+errno_t rc4(uint8_t *key, size_t key_size, uint8_t *input, size_t input_size,
     size_t skip, uint8_t *output)
 {