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| author | Hui Tang <tanghui20@huawei.com> | 2021-05-22 10:44:29 +0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2021-05-28 15:11:47 +0800 |
| commit | 8fd28fa5046b377039d5bbc0ab2f625dec703980 (patch) | |
| tree | 2c8579a49ead01f345570dc964e9a3c547e95f0e /crypto/ecdh.c | |
| parent | 6889fc2104e5d20899b91e61daf07a7524b2010d (diff) | |
| download | lwn-8fd28fa5046b377039d5bbc0ab2f625dec703980.tar.gz lwn-8fd28fa5046b377039d5bbc0ab2f625dec703980.zip | |
crypto: ecdh - fix 'ecdh_init'
NIST P192 is not unregistered if failed to register NIST P256,
actually it need to unregister the algorithms already registered.
Signed-off-by: Hui Tang <tanghui20@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/ecdh.c')
| -rw-r--r-- | crypto/ecdh.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/crypto/ecdh.c b/crypto/ecdh.c index 197467509323..b6f493e82812 100644 --- a/crypto/ecdh.c +++ b/crypto/ecdh.c @@ -183,7 +183,16 @@ static int ecdh_init(void) ret = crypto_register_kpp(&ecdh_nist_p192); ecdh_nist_p192_registered = ret == 0; - return crypto_register_kpp(&ecdh_nist_p256); + ret = crypto_register_kpp(&ecdh_nist_p256); + if (ret) + goto nist_p256_error; + + return 0; + +nist_p256_error: + if (ecdh_nist_p192_registered) + crypto_unregister_kpp(&ecdh_nist_p192); + return ret; } static void ecdh_exit(void) |