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authorAkinobu Mita <akinobu.mita@gmail.com>2006-10-11 22:29:51 +1000
committerHerbert Xu <herbert@gondor.apana.org.au>2006-10-11 22:29:51 +1000
commit9765d262b8230b735c4b2815b041c09a00833cf1 (patch)
treecf24840b4e1f06f1f1f756f52f4f9870b02a5ed3 /crypto
parent53a5fbdc2dff55161a206ed1a1385a8fa8055c34 (diff)
downloadlinux-linaro-stable-9765d262b8230b735c4b2815b041c09a00833cf1.tar.gz
[CRYPTO] api: fix crypto_alloc_base() return value
This patch makes crypto_alloc_base() return proper return value. - If kzalloc() failure happens within __crypto_alloc_tfm(), crypto_alloc_base() returns NULL. But crypto_alloc_base() is supposed to return error code as pointer. So this patch makes it return -ENOMEM in that case. - crypto_alloc_base() is suppose to return -EINTR, if it is interrupted by signal. But it may not return -EINTR. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
-rw-r--r--crypto/api.c15
1 files changed, 8 insertions, 7 deletions
diff --git a/crypto/api.c b/crypto/api.c
index 2e84d4b54790..4fb7fa45cb0d 100644
--- a/crypto/api.c
+++ b/crypto/api.c
@@ -331,7 +331,7 @@ struct crypto_tfm *__crypto_alloc_tfm(struct crypto_alg *alg, u32 flags)
tfm_size = sizeof(*tfm) + crypto_ctxsize(alg, flags);
tfm = kzalloc(tfm_size, GFP_KERNEL);
if (tfm == NULL)
- goto out;
+ goto out_err;
tfm->__crt_alg = alg;
@@ -355,6 +355,7 @@ cra_init_failed:
crypto_exit_ops(tfm);
out_free_tfm:
kfree(tfm);
+out_err:
tfm = ERR_PTR(err);
out:
return tfm;
@@ -414,14 +415,14 @@ struct crypto_tfm *crypto_alloc_base(const char *alg_name, u32 type, u32 mask)
struct crypto_alg *alg;
alg = crypto_alg_mod_lookup(alg_name, type, mask);
- err = PTR_ERR(alg);
- tfm = ERR_PTR(err);
- if (IS_ERR(alg))
+ if (IS_ERR(alg)) {
+ err = PTR_ERR(alg);
goto err;
+ }
tfm = __crypto_alloc_tfm(alg, 0);
if (!IS_ERR(tfm))
- break;
+ return tfm;
crypto_mod_put(alg);
err = PTR_ERR(tfm);
@@ -433,9 +434,9 @@ err:
err = -EINTR;
break;
}
- };
+ }
- return tfm;
+ return ERR_PTR(err);
}
EXPORT_SYMBOL_GPL(crypto_alloc_base);