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| author | Li Zefan <lizf@cn.fujitsu.com> | 2011-03-04 17:36:21 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-03-04 17:53:38 -0800 |
| commit | b75f38d659e6fc747eda64cb72f3920e29dd44a4 (patch) | |
| tree | 308edc066f8c26991323526d499eefa8c773f267 /kernel/cpuset.c | |
| parent | 2ec38a0359e227c01080dcd670a0368c61ccd9ce (diff) | |
| download | linux-b75f38d659e6fc747eda64cb72f3920e29dd44a4.tar.gz linux-b75f38d659e6fc747eda64cb72f3920e29dd44a4.tar.bz2 linux-b75f38d659e6fc747eda64cb72f3920e29dd44a4.zip | |
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>
Diffstat (limited to 'kernel/cpuset.c')
| -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 4349935c2ad8..e92e98189032 100644 --- a/kernel/cpuset.c +++ b/kernel/cpuset.c @@ -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; } |