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Diffstat (limited to 'kernel')
-rw-r--r--kernel/cgroup.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index c9483d8f6140..a7ba3bccadc5 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -1430,6 +1430,8 @@ static int cgroup_get_sb(struct file_system_type *fs_type,
struct super_block *sb;
struct cgroupfs_root *new_root;
+ lock_kernel();
+
/* First find the desired set of subsystems */
mutex_lock(&cgroup_mutex);
ret = parse_cgroupfs_options(data, &opts);
@@ -1559,6 +1561,7 @@ static int cgroup_get_sb(struct file_system_type *fs_type,
simple_set_mnt(mnt, sb);
kfree(opts.release_agent);
kfree(opts.name);
+ unlock_kernel();
return 0;
drop_new_super:
@@ -1568,6 +1571,7 @@ static int cgroup_get_sb(struct file_system_type *fs_type,
out_err:
kfree(opts.release_agent);
kfree(opts.name);
+ unlock_kernel();
return ret;
}