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| author |   Takashi Iwai <tiwai@suse.de> | 2012-01-31 15:13:14 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2012-01-31 15:13:14 +0100 |
| commit | ea51e5040e24eefe44d70bc654a237ca1f0225b0 (patch) | |
| tree | df2e5922dcdfafae62a10d8cd97f98121064fc23 /crypto/algapi.c | |
| parent | ALSA: HDA: Remove quirk for Toshiba Qosmio G50 (diff) | |
| parent | Merge tag 'asoc-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into fix/asoc (diff) | |
| download | wireguard-linux-ea51e5040e24eefe44d70bc654a237ca1f0225b0.tar.xz wireguard-linux-ea51e5040e24eefe44d70bc654a237ca1f0225b0.zip | |
Merge branch 'fix/asoc' into for-linus
Diffstat (limited to '')
| -rw-r--r-- | crypto/algapi.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/crypto/algapi.c b/crypto/algapi.c index 54dd4e33b5d6..9d4a9fe913f8 100644 --- a/crypto/algapi.c +++ b/crypto/algapi.c @@ -518,6 +518,35 @@ err: } EXPORT_SYMBOL_GPL(crypto_register_instance); +int crypto_unregister_instance(struct crypto_alg *alg) +{ + int err; + struct crypto_instance *inst = (void *)alg; + struct crypto_template *tmpl = inst->tmpl; + LIST_HEAD(users); + + if (!(alg->cra_flags & CRYPTO_ALG_INSTANCE)) + return -EINVAL; + + BUG_ON(atomic_read(&alg->cra_refcnt) != 1); + + down_write(&crypto_alg_sem); + + hlist_del_init(&inst->list); + err = crypto_remove_alg(alg, &users); + + up_write(&crypto_alg_sem); + + if (err) + return err; + + tmpl->free(inst); + crypto_remove_final(&users); + + return 0; +} +EXPORT_SYMBOL_GPL(crypto_unregister_instance); + int crypto_init_spawn(struct crypto_spawn *spawn, struct crypto_alg *alg, struct crypto_instance *inst, u32 mask) { |