arm64: dts: rk3399-sapphire-excavator-edp: add test-power

[firefly-linux-kernel-4.4.55.git] / kernel / cgroup_pids.c

diff --git a/kernel/cgroup_pids.c b/kernel/cgroup_pids.c
index 8e27fc5dbb20e6459a0ff7ab562d6b0f67dbbe27..b50d5a167fda7d2ae6902efd55e551efed780007 100644 (file)
--- a/kernel/cgroup_pids.c
+++ b/kernel/cgroup_pids.c
@@ -106,7 +106,7 @@ static void pids_uncharge(struct pids_cgroup *pids, int num)
 {
        struct pids_cgroup *p;
 
-       for (p = pids; p; p = parent_pids(p))
+       for (p = pids; parent_pids(p); p = parent_pids(p))
                pids_cancel(p, num);
 }
 
@@ -123,7 +123,7 @@ static void pids_charge(struct pids_cgroup *pids, int num)
 {
        struct pids_cgroup *p;
 
-       for (p = pids; p; p = parent_pids(p))
+       for (p = pids; parent_pids(p); p = parent_pids(p))
                atomic64_add(num, &p->counter);
 }
 
@@ -140,7 +140,7 @@ static int pids_try_charge(struct pids_cgroup *pids, int num)
 {
        struct pids_cgroup *p, *q;
 
-       for (p = pids; p; p = parent_pids(p)) {
+       for (p = pids; parent_pids(p); p = parent_pids(p)) {
                int64_t new = atomic64_add_return(num, &p->counter);
 
                /*
@@ -298,6 +298,7 @@ static struct cftype pids_files[] = {
        {
                .name = "current",
                .read_s64 = pids_current_read,
+               .flags = CFTYPE_NOT_ON_ROOT,
        },
        { }     /* terminate */
 };