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, 1 insertions, 2 deletions

diff --git a/crypto/authenc.c b/crypto/authenc.c
index d0583a4489e6..ffce19de05cf 100644
--- a/crypto/authenc.c
+++ b/crypto/authenc.c
@@ -592,9 +592,8 @@ static struct crypto_instance *crypto_authenc_alloc(struct rtattr **tb)
         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_AEAD) & algt->mask)
                 return ERR_PTR(-EINVAL);