[nginx] SSL: error message default in object caching API.

[noreply at nginx.com]

details:   https://github.com/nginx/nginx/commit/0ebc3242d99d3b9d00891b3cddda11ff9c2e86c4
branches:  master
commit:    0ebc3242d99d3b9d00891b3cddda11ff9c2e86c4
user:      Sergey Kandaurov <pluknet at nginx.com>
date:      Tue, 29 Oct 2024 00:50:40 +0400
description:
SSL: error message default in object caching API.

This change initializes the "err" variable, used to produce a meaningful
diagnostics on error path, to a good safe value.

---
 src/event/ngx_event_openssl_cache.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/event/ngx_event_openssl_cache.c b/src/event/ngx_event_openssl_cache.c
index f43bdb5e7..8829e2879 100644
--- a/src/event/ngx_event_openssl_cache.c
+++ b/src/event/ngx_event_openssl_cache.c
@@ -138,6 +138,8 @@ ngx_ssl_cache_fetch(ngx_conf_t *cf, ngx_uint_t index, char **err,
     ngx_ssl_cache_type_t  *type;
     ngx_ssl_cache_node_t  *cn;
 
+    *err = NULL;
+
     if (ngx_ssl_cache_init_key(cf->pool, index, path, &id) != NGX_OK) {
         return NULL;
     }
@@ -183,6 +185,8 @@ ngx_ssl_cache_connection_fetch(ngx_pool_t *pool, ngx_uint_t index, char **err,
 {
     ngx_ssl_cache_key_t  id;
 
+    *err = NULL;
+
     if (ngx_ssl_cache_init_key(pool, index, path, &id) != NGX_OK) {
         return NULL;
     }