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path: root/crypto/algapi.c
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Diffstat (limited to 'crypto/algapi.c')
-rw-r--r--crypto/algapi.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/crypto/algapi.c b/crypto/algapi.c
index 69eb504721a..0f1abca1b98 100644
--- a/crypto/algapi.c
+++ b/crypto/algapi.c
@@ -377,7 +377,8 @@ void crypto_drop_spawn(struct crypto_spawn *spawn)
}
EXPORT_SYMBOL_GPL(crypto_drop_spawn);
-struct crypto_tfm *crypto_spawn_tfm(struct crypto_spawn *spawn)
+struct crypto_tfm *crypto_spawn_tfm(struct crypto_spawn *spawn, u32 type,
+ u32 mask)
{
struct crypto_alg *alg;
struct crypto_alg *alg2;
@@ -396,10 +397,18 @@ struct crypto_tfm *crypto_spawn_tfm(struct crypto_spawn *spawn)
return ERR_PTR(-EAGAIN);
}
+ tfm = ERR_PTR(-EINVAL);
+ if (unlikely((alg->cra_flags ^ type) & mask))
+ goto out_put_alg;
+
tfm = __crypto_alloc_tfm(alg);
if (IS_ERR(tfm))
- crypto_mod_put(alg);
+ goto out_put_alg;
+
+ return tfm;
+out_put_alg:
+ crypto_mod_put(alg);
return tfm;
}
EXPORT_SYMBOL_GPL(crypto_spawn_tfm);