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| author | Julia Lawall <Julia.Lawall@lip6.fr> | 2013-01-22 12:29:26 +0100 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2013-02-04 21:16:53 +0800 |
| commit | 3e8afe35c36fa0e928e038667709966a71a9cfa5 (patch) | |
| tree | b74592dd4ec5e9fdcb89abf82374ecd9cd2e89b8 /crypto/ccm.c | |
| parent | 7b5c253c88ae5f6770e426b1d3f135be75483200 (diff) | |
| download | lwn-3e8afe35c36fa0e928e038667709966a71a9cfa5.tar.gz lwn-3e8afe35c36fa0e928e038667709966a71a9cfa5.zip | |
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.c | 23 |
1 files changed, 7 insertions, 16 deletions
diff --git a/crypto/ccm.c b/crypto/ccm.c index 32fe1bb5decb..499c91717d93 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) |