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crypto: algapi - pass instance to crypto_grab_spawn()

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Currently, crypto_spawn::inst is first used temporarily to pass the
instance to crypto_grab_spawn().  Then crypto_init_spawn() overwrites it
with crypto_spawn::next, which shares the same union.  Finally,
crypto_spawn::inst is set again when the instance is registered.

Make this less convoluted by just passing the instance as an argument to
crypto_grab_spawn() instead.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Eric Biggers
2020-01-02 19:58:48 -08:00
committed by Herbert Xu
parent 73bed26f73
commit de95c95741
6 changed files with 11 additions and 20 deletions
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6
crypto/algapi.c
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@@ -714,8 +714,8 @@ out:
}
EXPORT_SYMBOL_GPL(crypto_init_spawn2);
int crypto_grab_spawn(struct crypto_spawn *spawn, const char *name,
u32 type, u32 mask)
int crypto_grab_spawn(struct crypto_spawn *spawn, struct crypto_instance *inst,
const char *name, u32 type, u32 mask)
{
struct crypto_alg *alg;
int err;
@@ -729,7 +729,7 @@ int crypto_grab_spawn(struct crypto_spawn *spawn, const char *name,
return PTR_ERR(alg);
spawn->dropref = true;
err = crypto_init_spawn(spawn, alg, spawn->inst, mask);
err = crypto_init_spawn(spawn, alg, inst, mask);
if (err)
crypto_mod_put(alg);
return err;