crypto: use ERR_CAST

Replace PTR_ERR followed by ERR_PTR by ERR_CAST, to be more concise.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression err,x;
@@
-       err = PTR_ERR(x);
        if (IS_ERR(x))
-                return ERR_PTR(err);
+                return ERR_CAST(x);
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 2 insertions, 4 deletions

diff --git a/crypto/blkcipher.c b/crypto/blkcipher.c
index a8d85a1d670e..e9e7244d5ef5 100644
--- a/crypto/blkcipher.c
+++ b/crypto/blkcipher.c
@@ -588,18 +588,16 @@ struct crypto_instance *skcipher_geniv_alloc(struct crypto_template *tmpl,
         int err;
 
         algt = crypto_get_attr_type(tb);
-        err = PTR_ERR(algt);
         if (IS_ERR(algt))
-                return ERR_PTR(err);
+                return ERR_CAST(algt);
 
         if ((algt->type ^ (CRYPTO_ALG_TYPE_GIVCIPHER | CRYPTO_ALG_GENIV)) &
             algt->mask)
                 return ERR_PTR(-EINVAL);
 
         name = crypto_attr_alg_name(tb[1]);
-        err = PTR_ERR(name);
         if (IS_ERR(name))
-                return ERR_PTR(err);
+                return ERR_CAST(name);
 
         inst = kzalloc(sizeof(*inst) + sizeof(*spawn), GFP_KERNEL);
         if (!inst)