crypto/evp/e_aes.c: fix logical pre-processor bug and formatting.

Bug would emerge when XTS is added to bsaes-armv7.pl. Pointed out by
Ard Biesheuvel of Linaro.
(cherry picked from commit 044f63086051d7542fa9485a1432498c39c4d8fa)

diff --git a/crypto/evp/e_aes.c b/crypto/evp/e_aes.c
index 1bfb5d92b340172c8e97ec8d391b9d3e757b60a7..c7869b69efe2f4739df7533059efe4a621f560f1 100644 (file)
--- a/crypto/evp/e_aes.c
+++ b/crypto/evp/e_aes.c
@@ -842,7 +842,10 @@ static int aes_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
                        gctx->ctr = NULL;
                        break;
                        }
+               else
 #endif
+               (void)0;        /* terminate potentially open 'else' */
+
                AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks);
                CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks, (block128_f)AES_encrypt);
 #ifdef AES_CTR_ASM
@@ -1083,14 +1086,17 @@ static int aes_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
                        xctx->xts.block1 = (block128_f)vpaes_decrypt;
                        }
 
-               vpaes_set_encrypt_key(key + ctx->key_len/2,
+                   vpaes_set_encrypt_key(key + ctx->key_len/2,
                                                ctx->key_len * 4, &xctx->ks2);
-               xctx->xts.block2 = (block128_f)vpaes_encrypt;
+                   xctx->xts.block2 = (block128_f)vpaes_encrypt;
 
-               xctx->xts.key1 = &xctx->ks1;
-               break;
-               }
+                   xctx->xts.key1 = &xctx->ks1;
+                   break;
+                   }
+               else
 #endif
+               (void)0;        /* terminate potentially open 'else' */
+
                if (enc)
                        {
                        AES_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1);