system-controller: fix a screen management crash.

Change-Id: I34c9ca4ea02860811bd039d0c3a43b53a88adf02

diff --git a/src/plugins/system-controller/resource-manager/screen.c b/src/plugins/system-controller/resource-manager/screen.c
index 22d37e1..818df0b 100644 (file)
--- a/src/plugins/system-controller/resource-manager/screen.c
+++ b/src/plugins/system-controller/resource-manager/screen.c
@@ -805,7 +805,9 @@ void mrp_screen_resource_lower(mrp_resmgr_screen_t *screen,
         zmin = MRP_ZONE_MAX-1;
 
         for (i = cnt = 0;  i < screen->narea;  i++) {
-            area = screen->areas[i];
+            if (!(area = screen->areas[i]))
+                continue;
+
             resources = &area->resources;
 
             mrp_list_foreach_back(resources, entry, n) {