From 6bfd48096ff8ecabf955958b51ddfa7988eb0a14 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Thu, 21 Sep 2006 11:39:29 +1000 Subject: [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 Signed-off-by: David S. Miller --- crypto/cryptomgr.c | 19 ++++++++++++------- 1 file changed, 12 insertions(+), 7 deletions(-) (limited to 'crypto/cryptomgr.c') 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 #include #include +#include #include #include @@ -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; -- cgit v1.2.3