Fix the checks of EVP_PKEY_check

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Todd Short <todd.short@me.com>
(Merged from https://github.com/openssl/openssl/pull/18424)

1 files changed, 1 insertions, 1 deletions

diff --git a/apps/ec.c b/apps/ec.c
index fe9a774ab4..0962d6a500 100644
--- a/apps/ec.c
+++ b/apps/ec.c
@@ -230,7 +230,7 @@ int ec_main(int argc, char **argv)
             BIO_printf(bio_err, "unable to check EC key\n");
             goto end;
         }
-        if (!EVP_PKEY_check(pctx))
+        if (EVP_PKEY_check(pctx) <= 0)
             BIO_printf(bio_err, "EC Key Invalid!\n");
         else
             BIO_printf(bio_err, "EC Key valid.\n");