From b9f76dddb1f9f70e008b982381bbc9a67c9b8c66 Mon Sep 17 00:00:00 2001 From: Eric Biggers Date: Thu, 2 Jan 2020 19:58:45 -0800 Subject: crypto: skcipher - pass instance to crypto_grab_skcipher() Initializing a crypto_skcipher_spawn currently requires: 1. Set spawn->base.inst to point to the instance. 2. Call crypto_grab_skcipher(). But there's no reason for these steps to be separate, and in fact this unneeded complication has caused at least one bug, the one fixed by commit 6db43410179b ("crypto: adiantum - initialize crypto_spawn::inst") So just make crypto_grab_skcipher() take the instance as an argument. To keep the function calls from getting too unwieldy due to this extra argument, also introduce a 'mask' variable into the affected places which weren't already using one. Signed-off-by: Eric Biggers Signed-off-by: Herbert Xu --- crypto/cts.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) (limited to 'crypto/cts.c') diff --git a/crypto/cts.c b/crypto/cts.c index a0bb994f8b11..48188adc8e91 100644 --- a/crypto/cts.c +++ b/crypto/cts.c @@ -328,6 +328,7 @@ static int crypto_cts_create(struct crypto_template *tmpl, struct rtattr **tb) struct crypto_attr_type *algt; struct skcipher_alg *alg; const char *cipher_name; + u32 mask; int err; algt = crypto_get_attr_type(tb); @@ -337,6 +338,8 @@ static int crypto_cts_create(struct crypto_template *tmpl, struct rtattr **tb) if ((algt->type ^ CRYPTO_ALG_TYPE_SKCIPHER) & algt->mask) return -EINVAL; + mask = crypto_requires_sync(algt->type, algt->mask); + cipher_name = crypto_attr_alg_name(tb[1]); if (IS_ERR(cipher_name)) return PTR_ERR(cipher_name); @@ -347,10 +350,8 @@ static int crypto_cts_create(struct crypto_template *tmpl, struct rtattr **tb) spawn = skcipher_instance_ctx(inst); - crypto_set_skcipher_spawn(spawn, skcipher_crypto_instance(inst)); - err = crypto_grab_skcipher(spawn, cipher_name, 0, - crypto_requires_sync(algt->type, - algt->mask)); + err = crypto_grab_skcipher(spawn, skcipher_crypto_instance(inst), + cipher_name, 0, mask); if (err) goto err_free_inst; -- cgit v1.2.3