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crypto: shash - Fix module refcount

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Module reference counting for shash is incorrect: when
a new shash transformation is created the refcount is not
increased as it should.

Signed-off-by: Adrian-Ken Rueegsegger <rueegsegger@swiss-it.ch>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Adrian-Ken Rueegsegger 2009-02-05 16:19:31 +11:00 • committed by Herbert Xu
parent b8e15992b4
commit 4abfd73e34
1 changed files with 6 additions and 1 deletions
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7
crypto/shash.c
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@ -388,10 +388,15 @@ static int crypto_init_shash_ops_compat(struct crypto_tfm *tfm)
struct shash_desc *desc = crypto_tfm_ctx(tfm); struct shash_desc *desc = crypto_tfm_ctx(tfm);
struct crypto_shash *shash; struct crypto_shash *shash;
if (!crypto_mod_get(calg))
return -EAGAIN;
shash = __crypto_shash_cast(crypto_create_tfm( shash = __crypto_shash_cast(crypto_create_tfm(
calg, &crypto_shash_type)); calg, &crypto_shash_type));
if (IS_ERR(shash)) if (IS_ERR(shash)) {
crypto_mod_put(calg);
return PTR_ERR(shash); return PTR_ERR(shash);
}
desc->tfm = shash; desc->tfm = shash;
tfm->exit = crypto_exit_shash_ops_compat; tfm->exit = crypto_exit_shash_ops_compat;