diff options
author | Herbert Xu <herbert@gondor.apana.org.au> | 2006-09-21 11:39:29 +1000 |
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committer | Herbert Xu <herbert@gondor.apana.org.au> | 2006-09-21 11:39:29 +1000 |
commit | 6bfd48096ff8ecabf955958b51ddfa7988eb0a14 (patch) | |
tree | 813799f00d8402348ba6817953b1c631541be66c /crypto/cryptomgr.c | |
parent | 492e2b63eb10c28f4f0b694264d74a8755cd1be0 (diff) | |
download | linux-6bfd48096ff8ecabf955958b51ddfa7988eb0a14.tar.bz2 |
[CRYPTO] api: Added spawns
Spawns lock a specific crypto algorithm in place. They can then be used
with crypto_spawn_tfm to allocate a tfm for that algorithm. When the base
algorithm of a spawn is deregistered, all its spawns will be automatically
removed.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'crypto/cryptomgr.c')
-rw-r--r-- | crypto/cryptomgr.c | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/crypto/cryptomgr.c b/crypto/cryptomgr.c index ae54942e3b31..9b5b15601068 100644 --- a/crypto/cryptomgr.c +++ b/crypto/cryptomgr.c @@ -17,6 +17,7 @@ #include <linux/module.h> #include <linux/notifier.h> #include <linux/rtnetlink.h> +#include <linux/sched.h> #include <linux/string.h> #include <linux/workqueue.h> @@ -44,21 +45,25 @@ static void cryptomgr_probe(void *data) struct cryptomgr_param *param = data; struct crypto_template *tmpl; struct crypto_instance *inst; + int err; tmpl = crypto_lookup_template(param->template); if (!tmpl) goto err; - inst = tmpl->alloc(¶m->alg, sizeof(param->alg)); - if (IS_ERR(inst)) - goto err; - else if ((err = crypto_register_instance(tmpl, inst))) { - tmpl->free(inst); - goto err; - } + do { + inst = tmpl->alloc(¶m->alg, sizeof(param->alg)); + if (IS_ERR(inst)) + err = PTR_ERR(inst); + else if ((err = crypto_register_instance(tmpl, inst))) + tmpl->free(inst); + } while (err == -EAGAIN && !signal_pending(current)); crypto_tmpl_put(tmpl); + if (err) + goto err; + out: kfree(param); return; |