ico: avoid potential nil pointer dereferences

Bgeticon can fail, leaving the Icon img pointers nil.

diff --git a/sys/src/cmd/jpg/ico.c b/sys/src/cmd/jpg/ico.c
index 7fb270ed3398225e21ff68bd70502bd360b55b1f..f8f9c92ff082c86ee2413cedcb687fb297788345 100644 (file)
--- a/sys/src/cmd/jpg/ico.c
+++ b/sys/src/cmd/jpg/ico.c
@@ -535,6 +535,8 @@ eresized(int new)
        r.max.x = screen->r.min.x;
        r.min.y = screen->r.min.y + font->height + 2*BORDER;
        for(icon = h.first; icon != nil; icon = icon->next){
+               if(icon->img == nil)
+                       continue;
                r.min.x = r.max.x + BORDER;
                r.max.x = r.min.x + Dx(icon->img->r);
                r.max.y = r.min.y + Dy(icon->img->r);