Add the ability for ex_data to have a priority

Where an object has multiple ex_data associated with it, then we free that
ex_data in order of priority (high priority first).

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14991)

1 files changed, 2 insertions, 0 deletions

diff --git a/crypto/provider_conf.c b/crypto/provider_conf.c
index a04a7aa553..6223d27cbb 100644
--- a/crypto/provider_conf.c
+++ b/crypto/provider_conf.c
@@ -45,6 +45,8 @@ static void prov_conf_ossl_ctx_free(void *vpcgbl)
 }
 
 static const OSSL_LIB_CTX_METHOD provider_conf_ossl_ctx_method = {
+    /* Must be freed before the provider store is freed */
+    OSSL_LIB_CTX_METHOD_HIGH_PRIORITY,
     prov_conf_ossl_ctx_new,
     prov_conf_ossl_ctx_free,
 };