diff options
| author | Li Zefan <lizf@cn.fujitsu.com> | 2011-03-04 17:36:21 -0800 |
|---|---|---|
| committer | AK <andi@firstfloor.org> | 2011-03-31 11:58:19 -0700 |
| commit | ed0afb9880641cc6a22a46b75fcaca67728ce41b (patch) | |
| tree | 105fd611567424dc8fdbbe96f3e09d1b7d712f07 /kernel | |
| parent | d63d8586fd2d38b7faa03938f7a9957f4f021427 (diff) | |
cpuset: add a missing unlock in cpuset_write_resmask()
commit b75f38d659e6fc747eda64cb72f3920e29dd44a4 upstream.
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>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Paul Menage <menage@google.com>
Acked-by: David Rientjes <rientjes@google.com>
Cc: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/cpuset.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/kernel/cpuset.c b/kernel/cpuset.c index 02b9611eadd..8c781d59f2e 100644 --- a/kernel/cpuset.c +++ b/kernel/cpuset.c @@ -1576,8 +1576,10 @@ 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: @@ -1592,6 +1594,7 @@ static int cpuset_write_resmask(struct cgroup *cgrp, struct cftype *cft, } free_trial_cpuset(trialcs); +out: cgroup_unlock(); return retval; } |