Commit b75f38d6 authored Mar 04, 2011 by Li Zefan Committed by Linus Torvalds Mar 04, 2011

cpuset: add a missing unlock in cpuset_write_resmask()



Don't forget to release cgroup_mutex if alloc_trial_cpuset() fails.

[akpm@linux-foundation.org: avoid multiple return points]
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: Paul Menage <menage@google.com>
Acked-by: David Rientjes <rientjes@google.com>
Cc: Miao Xie <miaox@cn.fujitsu.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 2ec38a03

kernel/cpuset.c

+5 −2

Original line number	Diff line number	Diff line
		@@ -1575,8 +1575,10 @@ static int cpuset_write_resmask(struct cgroup cgrp, struct cftype cft,
		return -ENODEV;

		trialcs = alloc_trial_cpuset(cs);
		if (!trialcs)
		return -ENOMEM;
		if (!trialcs) {
		retval = -ENOMEM;
		goto out;
		}

		switch (cft->private) {
		case FILE_CPULIST:
		@@ -1591,6 +1593,7 @@ static int cpuset_write_resmask(struct cgroup cgrp, struct cftype cft,
		}

		free_trial_cpuset(trialcs);
		out:
		cgroup_unlock();
		return retval;
		}