From 8fd28fa5046b377039d5bbc0ab2f625dec703980 Mon Sep 17 00:00:00 2001 From: Hui Tang Date: Sat, 22 May 2021 10:44:29 +0800 Subject: [PATCH] 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 Signed-off-by: Herbert Xu --- crypto/ecdh.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) 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)