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authorJulia Lawall <Julia.Lawall@lip6.fr>2013-01-22 12:29:26 +0100
committerHerbert Xu <herbert@gondor.apana.org.au>2013-02-04 21:16:53 +0800
commit3e8afe35c36fa0e928e038667709966a71a9cfa5 (patch)
treeb74592dd4ec5e9fdcb89abf82374ecd9cd2e89b8 /crypto/ccm.c
parent7b5c253c88ae5f6770e426b1d3f135be75483200 (diff)
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>
Diffstat (limited to 'crypto/ccm.c')
-rw-r--r--crypto/ccm.c23
1 files changed, 7 insertions, 16 deletions
diff --git a/crypto/ccm.c b/crypto/ccm.c
index 32fe1bb5dec..499c91717d9 100644
--- a/crypto/ccm.c
+++ b/crypto/ccm.c
@@ -484,18 +484,16 @@ static struct crypto_instance *crypto_ccm_alloc_common(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);
cipher = crypto_alg_mod_lookup(cipher_name, CRYPTO_ALG_TYPE_CIPHER,
CRYPTO_ALG_TYPE_MASK);
- err = PTR_ERR(cipher);
if (IS_ERR(cipher))
- return ERR_PTR(err);
+ return ERR_CAST(cipher);
err = -EINVAL;
if (cipher->cra_blocksize != 16)
@@ -573,15 +571,13 @@ out_put_cipher:
static struct crypto_instance *crypto_ccm_alloc(struct rtattr **tb)
{
- int err;
const char *cipher_name;
char ctr_name[CRYPTO_MAX_ALG_NAME];
char full_name[CRYPTO_MAX_ALG_NAME];
cipher_name = crypto_attr_alg_name(tb[1]);
- err = PTR_ERR(cipher_name);
if (IS_ERR(cipher_name))
- return ERR_PTR(err);
+ return ERR_CAST(cipher_name);
if (snprintf(ctr_name, CRYPTO_MAX_ALG_NAME, "ctr(%s)",
cipher_name) >= CRYPTO_MAX_ALG_NAME)
@@ -612,20 +608,17 @@ static struct crypto_template crypto_ccm_tmpl = {
static struct crypto_instance *crypto_ccm_base_alloc(struct rtattr **tb)
{
- int err;
const char *ctr_name;
const char *cipher_name;
char full_name[CRYPTO_MAX_ALG_NAME];
ctr_name = crypto_attr_alg_name(tb[1]);
- err = PTR_ERR(ctr_name);
if (IS_ERR(ctr_name))
- return ERR_PTR(err);
+ return ERR_CAST(ctr_name);
cipher_name = crypto_attr_alg_name(tb[2]);
- err = PTR_ERR(cipher_name);
if (IS_ERR(cipher_name))
- return ERR_PTR(err);
+ return ERR_CAST(cipher_name);
if (snprintf(full_name, CRYPTO_MAX_ALG_NAME, "ccm_base(%s,%s)",
ctr_name, cipher_name) >= CRYPTO_MAX_ALG_NAME)
@@ -760,17 +753,15 @@ static struct crypto_instance *crypto_rfc4309_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);
ccm_name = crypto_attr_alg_name(tb[1]);
- err = PTR_ERR(ccm_name);
if (IS_ERR(ccm_name))
- return ERR_PTR(err);
+ return ERR_CAST(ccm_name);
inst = kzalloc(sizeof(*inst) + sizeof(*spawn), GFP_KERNEL);
if (!inst)