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authorIngo Molnar <mingo@elte.hu>2009-03-26 13:29:40 -0400
committerIngo Molnar <mingo@elte.hu>2009-03-26 13:29:40 -0400
commit5a54bd1307471c1cd0521402fe65e2057edcab2f (patch)
tree25fb6a543db4ccc11b6d5662ed2e7facfce39ae7 /crypto/api.c
parentf9f35677d81adb0feedcd6e0e661784805c8facd (diff)
parent8e0ee43bc2c3e19db56a4adaa9a9b04ce885cd84 (diff)
Merge commit 'v2.6.29' into core/header-fixes
Diffstat (limited to 'crypto/api.c')
-rw-r--r--crypto/api.c35
1 files changed, 23 insertions, 12 deletions
diff --git a/crypto/api.c b/crypto/api.c
index 9975a7bd246c..38a2bc02a98c 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)
215 mask &= ~(CRYPTO_ALG_LARVAL | CRYPTO_ALG_DEAD); 215 mask &= ~(CRYPTO_ALG_LARVAL | CRYPTO_ALG_DEAD);
216 type &= mask; 216 type &= mask;
217 217
218 alg = try_then_request_module(crypto_alg_lookup(name, type, mask), 218 alg = crypto_alg_lookup(name, type, mask);
219 name); 219 if (!alg) {
220 char tmp[CRYPTO_MAX_ALG_NAME];
221
222 request_module(name);
223
224 if (!((type ^ CRYPTO_ALG_NEED_FALLBACK) & mask) &&
225 snprintf(tmp, sizeof(tmp), "%s-all", name) < sizeof(tmp))
226 request_module(tmp);
227
228 alg = crypto_alg_lookup(name, type, mask);
229 }
230
220 if (alg) 231 if (alg)
221 return crypto_is_larval(alg) ? crypto_larval_wait(alg) : alg; 232 return crypto_is_larval(alg) ? crypto_larval_wait(alg) : alg;
222 233
@@ -557,34 +568,34 @@ err:
557 return ERR_PTR(err); 568 return ERR_PTR(err);
558} 569}
559EXPORT_SYMBOL_GPL(crypto_alloc_tfm); 570EXPORT_SYMBOL_GPL(crypto_alloc_tfm);
560 571
561/* 572/*
562 * crypto_free_tfm - Free crypto transform 573 * crypto_destroy_tfm - Free crypto transform
574 * @mem: Start of tfm slab
563 * @tfm: Transform to free 575 * @tfm: Transform to free
564 * 576 *
565 * crypto_free_tfm() frees up the transform and any associated resources, 577 * This function frees up the transform and any associated resources,
566 * then drops the refcount on the associated algorithm. 578 * then drops the refcount on the associated algorithm.
567 */ 579 */
568void crypto_free_tfm(struct crypto_tfm *tfm) 580void crypto_destroy_tfm(void *mem, struct crypto_tfm *tfm)
569{ 581{
570 struct crypto_alg *alg; 582 struct crypto_alg *alg;
571 int size; 583 int size;
572 584
573 if (unlikely(!tfm)) 585 if (unlikely(!mem))
574 return; 586 return;
575 587
576 alg = tfm->__crt_alg; 588 alg = tfm->__crt_alg;
577 size = sizeof(*tfm) + alg->cra_ctxsize; 589 size = ksize(mem);
578 590
579 if (!tfm->exit && alg->cra_exit) 591 if (!tfm->exit && alg->cra_exit)
580 alg->cra_exit(tfm); 592 alg->cra_exit(tfm);
581 crypto_exit_ops(tfm); 593 crypto_exit_ops(tfm);
582 crypto_mod_put(alg); 594 crypto_mod_put(alg);
583 memset(tfm, 0, size); 595 memset(mem, 0, size);
584 kfree(tfm); 596 kfree(mem);
585} 597}
586 598EXPORT_SYMBOL_GPL(crypto_destroy_tfm);
587EXPORT_SYMBOL_GPL(crypto_free_tfm);
588 599
589int crypto_has_alg(const char *name, u32 type, u32 mask) 600int crypto_has_alg(const char *name, u32 type, u32 mask)
590{ 601{