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author | Ingo Molnar <mingo@elte.hu> | 2009-03-26 18:29:40 +0100 |
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committer | Ingo Molnar <mingo@elte.hu> | 2009-03-26 18:29:40 +0100 |
commit | 5a54bd1307471c1cd0521402fe65e2057edcab2f (patch) | |
tree | 25fb6a543db4ccc11b6d5662ed2e7facfce39ae7 /crypto/api.c | |
parent | f9f35677d81adb0feedcd6e0e661784805c8facd (diff) | |
parent | 8e0ee43bc2c3e19db56a4adaa9a9b04ce885cd84 (diff) | |
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Merge commit 'v2.6.29' into core/header-fixes
Diffstat (limited to 'crypto/api.c')
-rw-r--r-- | crypto/api.c | 35 |
1 files changed, 23 insertions, 12 deletions
diff --git a/crypto/api.c b/crypto/api.c index 9975a7b..38a2bc0 100644 --- a/crypto/api.c +++ b/crypto/api.c @@ -215,8 +215,19 @@ struct crypto_alg *crypto_larval_lookup(const char *name, u32 type, u32 mask) mask &= ~(CRYPTO_ALG_LARVAL | CRYPTO_ALG_DEAD); type &= mask; - alg = try_then_request_module(crypto_alg_lookup(name, type, mask), - name); + alg = crypto_alg_lookup(name, type, mask); + if (!alg) { + char tmp[CRYPTO_MAX_ALG_NAME]; + + request_module(name); + + if (!((type ^ CRYPTO_ALG_NEED_FALLBACK) & mask) && + snprintf(tmp, sizeof(tmp), "%s-all", name) < sizeof(tmp)) + request_module(tmp); + + alg = crypto_alg_lookup(name, type, mask); + } + if (alg) return crypto_is_larval(alg) ? crypto_larval_wait(alg) : alg; @@ -557,34 +568,34 @@ err: return ERR_PTR(err); } EXPORT_SYMBOL_GPL(crypto_alloc_tfm); - + /* - * crypto_free_tfm - Free crypto transform + * crypto_destroy_tfm - Free crypto transform + * @mem: Start of tfm slab * @tfm: Transform to free * - * crypto_free_tfm() frees up the transform and any associated resources, + * This function frees up the transform and any associated resources, * then drops the refcount on the associated algorithm. */ -void crypto_free_tfm(struct crypto_tfm *tfm) +void crypto_destroy_tfm(void *mem, struct crypto_tfm *tfm) { struct crypto_alg *alg; int size; - if (unlikely(!tfm)) + if (unlikely(!mem)) return; alg = tfm->__crt_alg; - size = sizeof(*tfm) + alg->cra_ctxsize; + size = ksize(mem); if (!tfm->exit && alg->cra_exit) alg->cra_exit(tfm); crypto_exit_ops(tfm); crypto_mod_put(alg); - memset(tfm, 0, size); - kfree(tfm); + memset(mem, 0, size); + kfree(mem); } - -EXPORT_SYMBOL_GPL(crypto_free_tfm); +EXPORT_SYMBOL_GPL(crypto_destroy_tfm); int crypto_has_alg(const char *name, u32 type, u32 mask) { |