diff options
Diffstat (limited to 'crypto/api.c')
| -rw-r--r-- | crypto/api.c | 26 |
1 files changed, 12 insertions, 14 deletions
diff --git a/crypto/api.c b/crypto/api.c index 798526d9053..a2b39c5f364 100644 --- a/crypto/api.c +++ b/crypto/api.c @@ -10,7 +10,7 @@ * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the Free - * Software Foundation; either version 2 of the License, or (at your option) + * Software Foundation; either version 2 of the License, or (at your option) * any later version. * */ @@ -34,11 +34,7 @@ EXPORT_SYMBOL_GPL(crypto_alg_sem); BLOCKING_NOTIFIER_HEAD(crypto_chain); EXPORT_SYMBOL_GPL(crypto_chain); -static inline struct crypto_alg *crypto_alg_get(struct crypto_alg *alg) -{ - atomic_inc(&alg->cra_refcnt); - return alg; -} +static struct crypto_alg *crypto_larval_wait(struct crypto_alg *alg); struct crypto_alg *crypto_mod_get(struct crypto_alg *alg) { @@ -150,8 +146,11 @@ static struct crypto_alg *crypto_larval_add(const char *name, u32 type, } up_write(&crypto_alg_sem); - if (alg != &larval->alg) + if (alg != &larval->alg) { kfree(larval); + if (crypto_is_larval(alg)) + alg = crypto_larval_wait(alg); + } return alg; } @@ -288,11 +287,11 @@ static int crypto_init_ops(struct crypto_tfm *tfm, u32 type, u32 mask) case CRYPTO_ALG_TYPE_COMPRESS: return crypto_init_compress_ops(tfm); - + default: break; } - + BUG(); return -EINVAL; } @@ -315,10 +314,9 @@ static void crypto_exit_ops(struct crypto_tfm *tfm) case CRYPTO_ALG_TYPE_COMPRESS: crypto_exit_compress_ops(tfm); break; - + default: BUG(); - } } @@ -398,7 +396,7 @@ EXPORT_SYMBOL_GPL(__crypto_alloc_tfm); * @mask: Mask for type comparison * * This function should not be used by new algorithm types. - * Plesae use crypto_alloc_tfm instead. + * Please use crypto_alloc_tfm instead. * * crypto_alloc_base() will first attempt to locate an already loaded * algorithm. If that fails and the kernel supports dynamically loadable @@ -593,12 +591,12 @@ int crypto_has_alg(const char *name, u32 type, u32 mask) { int ret = 0; struct crypto_alg *alg = crypto_alg_mod_lookup(name, type, mask); - + if (!IS_ERR(alg)) { crypto_mod_put(alg); ret = 1; } - + return ret; } EXPORT_SYMBOL_GPL(crypto_has_alg); |