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-rw-r--r--kernel/cpuset.c25
1 files changed, 15 insertions, 10 deletions
diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index f513dd937ee..3ea63da11d7 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -799,18 +799,23 @@ static int update_nodemask(struct cpuset *cs, char *buf)
trialcs = *cs;
retval = nodelist_parse(buf, trialcs.mems_allowed);
if (retval < 0)
- return retval;
+ goto done;
nodes_and(trialcs.mems_allowed, trialcs.mems_allowed, node_online_map);
- if (nodes_empty(trialcs.mems_allowed))
- return -ENOSPC;
- retval = validate_change(cs, &trialcs);
- if (retval == 0) {
- down(&callback_sem);
- cs->mems_allowed = trialcs.mems_allowed;
- atomic_inc(&cpuset_mems_generation);
- cs->mems_generation = atomic_read(&cpuset_mems_generation);
- up(&callback_sem);
+ if (nodes_empty(trialcs.mems_allowed)) {
+ retval = -ENOSPC;
+ goto done;
}
+ retval = validate_change(cs, &trialcs);
+ if (retval < 0)
+ goto done;
+
+ down(&callback_sem);
+ cs->mems_allowed = trialcs.mems_allowed;
+ atomic_inc(&cpuset_mems_generation);
+ cs->mems_generation = atomic_read(&cpuset_mems_generation);
+ up(&callback_sem);
+
+done:
return retval;
}