diff --git a/[refs] b/[refs]
index 43e9b85425a0..f61bb62776bb 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: ed198cb49750fd9ec564e9f1df66c10efea605f1
+refs/heads/master: aa783a8f31c79f493bd49ba926b171b79b9839fb
diff --git a/trunk/arch/um/kernel/physmem.c b/trunk/arch/um/kernel/physmem.c
index 0500800df1c1..73c741d37af9 100644
--- a/trunk/arch/um/kernel/physmem.c
+++ b/trunk/arch/um/kernel/physmem.c
@@ -69,7 +69,7 @@ static void insert_phys_mapping(struct phys_desc *desc)
 		panic("Physical remapping for %p already present",
 		      desc->virt);
 
-	rb_link_node(&desc->rb, (*n)->rb_parent, n);
+	rb_link_node(&desc->rb, rb_parent(*n), n);
 	rb_insert_color(&desc->rb, &phys_mappings);
 }