diff --git a/kernel/cgroup/cpuset.c b/kernel/cgroup/cpuset.c
index 40ec4abaf4408f..a9b6d56eeffabe 100644
--- a/kernel/cgroup/cpuset.c
+++ b/kernel/cgroup/cpuset.c
@@ -1991,6 +1991,8 @@ static int update_parent_effective_cpumask(struct cpuset *cs, int cmd,
 			part_error = PERR_CPUSEMPTY;
 			goto write_error;
 		}
+		/* Check newmask again, whether cpus are available for parent/cs */
+		nocpu |= tasks_nocpu_error(parent, cs, newmask);
 
 		/*
 		 * partcmd_update with newmask: