crypto: tcrpyt - Remove unnecessary kmap/kunmap calls

[safe/jmp/linux-2.6] / crypto / lrw.c

diff --git a/crypto/lrw.c b/crypto/lrw.c
index b410508..8ef664e 100644 (file)
--- a/crypto/lrw.c
+++ b/crypto/lrw.c
@@ -91,8 +91,9 @@ struct sinfo {
 
 static inline void inc(be128 *iv)
 {
-       if (!(iv->b = cpu_to_be64(be64_to_cpu(iv->b) + 1)))
-               iv->a = cpu_to_be64(be64_to_cpu(iv->a) + 1);
+       be64_add_cpu(&iv->b, 1);
+       if (!iv->b)
+               be64_add_cpu(&iv->a, 1);
 }
 
 static inline void lrw_round(struct sinfo *s, void *dst, const void *src)
@@ -228,15 +229,20 @@ static void exit_tfm(struct crypto_tfm *tfm)
        crypto_free_cipher(ctx->child);
 }
 
-static struct crypto_instance *alloc(void *param, unsigned int len)
+static struct crypto_instance *alloc(struct rtattr **tb)
 {
        struct crypto_instance *inst;
        struct crypto_alg *alg;
+       int err;
+
+       err = crypto_check_attr_type(tb, CRYPTO_ALG_TYPE_BLKCIPHER);
+       if (err)
+               return ERR_PTR(err);
 
-       alg = crypto_get_attr_alg(param, len, CRYPTO_ALG_TYPE_CIPHER,
-                                 CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_ASYNC);
+       alg = crypto_get_attr_alg(tb, CRYPTO_ALG_TYPE_CIPHER,
+                                 CRYPTO_ALG_TYPE_MASK);
        if (IS_ERR(alg))
-               return ERR_PTR(PTR_ERR(alg));
+               return ERR_CAST(alg);
 
        inst = crypto_alloc_instance("lrw", alg);
        if (IS_ERR(inst))