Nullify destroyed pointer.

Change-Id: I40384227010a733499b05bf6b587a1ec125505df

diff --git a/src/digest.c b/src/digest.c
index 9c50748..2a5f01d 100644 (file)
--- a/src/digest.c
+++ b/src/digest.c
@@ -67,6 +67,7 @@ static void destroy_digest_context(yaca_ctx_h ctx)
                return;
 
        EVP_MD_CTX_destroy(c->mdctx);
+       c->mdctx = NULL;
 }
 
 int digest_get_algorithm(yaca_digest_algo_e algo, const EVP_MD **md)