Revert "Remove core_info_list_num_info_files"

This reverts commit 9d96e9e.

core_info.c

@@ -207,8 +207,8 @@ void core_info_get_name(const char *path, char *s, size_t len)
    if (!core_info)
       goto error;
 
-   core_info_list->list  = core_info;
-   core_info_list->count = 0;
+   core_info_list->list = core_info;
+   core_info_list->count = contents->size;
 
    for (i = 0; i < contents->size; i++)
    {
@@ -231,13 +231,6 @@ void core_info_get_name(const char *path, char *s, size_t len)
       strlcpy(s, core_info[i].core_name, len);
    }
 
-   for (i = 0; i < contents->size; i++)
-   {
-      config_file_t *conf = (config_file_t*)
-         core_info_list->list[i].config_data;
-      core_info_list->count += !!conf;
-   }
-
 error:
    if (contents)
       dir_list_free(contents);
@@ -353,6 +346,24 @@ static core_info_list_t *core_info_list_new(void)
    return NULL;
 }
 
+
+size_t core_info_list_num_info_files(core_info_list_t *core_info_list)
+{
+   size_t i, num = 0;
+
+   if (!core_info_list)
+      return 0;
+
+   for (i = 0; i < core_info_list->count; i++)
+   {
+      config_file_t *conf = (config_file_t*)
+         core_info_list->list[i].config_data;
+      num += !!conf;
+   }
+
+   return num;
+}
+
 bool core_info_list_get_display_name(core_info_list_t *core_info_list,
       const char *path, char *s, size_t len)
 {

core_info.h

@@ -96,6 +96,8 @@ typedef struct core_info_ctx_find
    const char *path;
 } core_info_ctx_find_t;
 
+size_t core_info_list_num_info_files(core_info_list_t *list);
+
 /* Non-reentrant, does not allocate. Returns pointer to internal state. */
 void core_info_list_get_supported_cores(core_info_list_t *list,
       const char *path, const core_info_t **infos, size_t *num_infos);

menu/drivers/materialui.c

@@ -1375,8 +1375,7 @@ static int mui_list_push(void *data, void *userdata,
                MENU_SETTING_ACTION, 0, 0);
 
          core_info_ctl(CORE_INFO_CTL_LIST_GET, &list);
-
-         if (list->count > 0)
+         if (core_info_list_num_info_files(list))
          {
             menu_entries_push(info->list,
                   menu_hash_to_str(MENU_LABEL_VALUE_DETECT_CORE_LIST),

menu/menu_displaylist.c

@@ -2960,7 +2960,7 @@ int menu_displaylist_push_list(menu_displaylist_info_t *info, unsigned type)
                menu_hash_to_str(MENU_LABEL_LOAD_CONTENT),
                MENU_SETTING_ACTION, 0, 0);
 
-         if (list->count > 0)
+         if (core_info_list_num_info_files(list))
          {
             menu_entries_push(info->list,
                   menu_hash_to_str(MENU_LABEL_VALUE_DETECT_CORE_LIST),