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Always call rw_init in zio_crypt_key_unwrap

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The error path in zio_crypt_key_unwrap would call zio_crypt_key_destroy which
calls rw_destroy(&key->zk_salt_lock); which has not yet been initialized.

We move the rw_init() call to the start of zio_crypt_key_unwrap instead.

Reviewed-by: Tom Caputi <tcaputi@datto.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Jorgen Lundman <lundman@lundman.net>
Closes #8604
Closes #8605
This commit is contained in:
Jorgen Lundman 2019-04-11 07:39:40 +09:00 committed by Brian Behlendorf
parent 8cb34421e0
commit 48ed0f9da0
1 changed files with 2 additions and 1 deletions
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3
module/zfs/zio_crypt.c
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@ -559,6 +559,8 @@ zio_crypt_key_unwrap(crypto_key_t *cwkey, uint64_t crypt, uint64_t version,
ASSERT3U(crypt, <, ZIO_CRYPT_FUNCTIONS); ASSERT3U(crypt, <, ZIO_CRYPT_FUNCTIONS);
ASSERT3U(cwkey->ck_format, ==, CRYPTO_KEY_RAW); ASSERT3U(cwkey->ck_format, ==, CRYPTO_KEY_RAW);
rw_init(&key->zk_salt_lock, NULL, RW_DEFAULT, NULL);
keydata_len = zio_crypt_table[crypt].ci_keylen; keydata_len = zio_crypt_table[crypt].ci_keylen;
/* initialize uio_ts */ /* initialize uio_ts */
@ -640,7 +642,6 @@ zio_crypt_key_unwrap(crypto_key_t *cwkey, uint64_t crypt, uint64_t version,
key->zk_version = version; key->zk_version = version;
key->zk_guid = guid; key->zk_guid = guid;
key->zk_salt_count = 0; key->zk_salt_count = 0;
rw_init(&key->zk_salt_lock, NULL, RW_DEFAULT, NULL);
return (0); return (0);