Fix memory leak.

PR#2531

(Imported from upstream's 15de0f609c859883347357aaf6cc685c797358bd)

Change-Id: I4ee3a5ce22ee047a8eaa2c74f26971109a23680c
diff --git a/ssl/t1_lib.c b/ssl/t1_lib.c
index 5bc0ae9..4e79f74 100644
--- a/ssl/t1_lib.c
+++ b/ssl/t1_lib.c
@@ -2906,7 +2906,11 @@
 		}
 	EVP_DecryptUpdate(&ctx, sdec, &slen, p, eticklen);
 	if (EVP_DecryptFinal_ex(&ctx, sdec + slen, &mlen) <= 0)
+		{
+		EVP_CIPHER_CTX_cleanup(&ctx);
+		OPENSSL_free(sdec);
 		return 2;
+		}
 	slen += mlen;
 	EVP_CIPHER_CTX_cleanup(&ctx);
 	p = sdec;