src: fix memory leak introduced in 34febfb

Fix leaking the BIO in the error path.  Introduced in commit 34febfb
("crypto: fix handling of root_cert_store").

PR-URL: #9604
Refs: #9409
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: Fedor Indutny <[email protected]>
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Jeremiah Senkpiel <[email protected]>
Reviewed-By: Michael Dawson <[email protected]>
Reviewed-By: Rod Vagg <[email protected]>

Author: bnoordhuis

src/node_crypto.cc

@@ -770,9 +770,8 @@ void SecureContext::AddCRL(const FunctionCallbackInfo<Value>& args) {
       PEM_read_bio_X509_CRL(bio, nullptr, CryptoPemCallback, nullptr);
 
   if (crl == nullptr) {
-    return env->ThrowError("Failed to parse CRL");
     BIO_free_all(bio);
-    return;
+    return env->ThrowError("Failed to parse CRL");
   }
 
   X509_STORE* cert_store = SSL_CTX_get_cert_store(sc->ctx_);