[CRYPTO]: Fix zero-extension bug on 64-bit architectures.

Noticed by Ken-ichirou MATSUZAWA.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/crypto/internal.h b/crypto/internal.h
index 68612874b5fd..37515beafc8c 100644
--- a/crypto/internal.h
+++ b/crypto/internal.h
@@ -75,7 +75,7 @@ static inline unsigned int crypto_cipher_ctxsize(struct crypto_alg *alg,
         
         switch (flags & CRYPTO_TFM_MODE_MASK) {
         case CRYPTO_TFM_MODE_CBC:
-                len = ALIGN(len, alg->cra_alignmask + 1);
+                len = ALIGN(len, (unsigned long)alg->cra_alignmask + 1);
                 len += alg->cra_blocksize;
                 break;
         }