[rng] Fix build error when assertions are enabled

Signed-off-by: Michael Brown <mcb30@ipxe.org>

diff --git a/src/crypto/drbg.c b/src/crypto/drbg.c
index afd75da3fa91130c6bf0cfdc4f007f7ac3a68c04..809de3722ed92f1a706a46b39cc7d91c83915c35 100644 (file)
--- a/src/crypto/drbg.c
+++ b/src/crypto/drbg.c
@@ -128,8 +128,8 @@ int drbg_instantiate ( struct drbg_state *state, const void *personal,
                       state, strerror ( rc ) );
                return rc;
        }
-       assert ( len >= min_len );
-       assert ( len <= sizeof ( data ) );
+       assert ( len >= ( int ) min_len );
+       assert ( len <= ( int ) sizeof ( data ) );
 
        /* 9.  initial_working_state = Instantiate_algorithm (
         *     entropy_input, nonce, personalization_string ).