(DRM) Prevent double free and prevent dereference before NULL check

database_info.c

@@ -511,10 +511,11 @@ database_info_list_t *database_info_list_new(
    database_info_list->count = k;
 
 end:
-   database_cursor_close(db, cur);
-
    if (db)
+   {
+      database_cursor_close(db, cur);
       libretrodb_free(db);
+   }
    if (cur)
       libretrodb_cursor_free(cur);
 

gfx/drivers_context/drm_ctx.c

@@ -325,6 +325,7 @@ static void free_drm_resources(gfx_ctx_drm_data_t *drm)
 
    drm_free();
 
+   if (drm->drm)
       if (g_drm_fd >= 0)
          filestream_close(drm->drm);
 

gfx/video_shader_driver.c

@@ -79,6 +79,7 @@ bool video_shader_driver_get_prev_textures(video_shader_ctx_texture_t *texture)
 {
    if (!!texture || !current_shader)
    {
+      if (texture)
          texture->id = 0;
       return false;
    }