cgroups: ERR_PTR needs err.h

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>

diff --git a/kernel/cgroup_task_counter.c b/kernel/cgroup_task_counter.c
index 237490529bdd6dbda2395f356139ed5f4d490ee6..201d8e3e9ed310079c36da6815acb0a29802ca11 100644 (file)
--- a/kernel/cgroup_task_counter.c
+++ b/kernel/cgroup_task_counter.c
@@ -11,6 +11,7 @@
 #include <linux/cgroup.h>
 #include <linux/slab.h>
 #include <linux/res_counter.h>
+#include <linux/err.h>
 
 
 struct task_counter {