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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi...
[firefly-linux-kernel-4.4.55.git]
/
security
/
device_cgroup.c
diff --git
a/security/device_cgroup.c
b/security/device_cgroup.c
index 19ecc8de9e6bfd837e2589546fdfe49b04b23ed0..d794abcc4b3b7e5e87173ba8ca45deca5b6d09d8 100644
(file)
--- a/
security/device_cgroup.c
+++ b/
security/device_cgroup.c
@@
-215,7
+215,9
@@
static void devcgroup_css_free(struct cgroup *cgroup)
struct dev_cgroup *dev_cgroup;
dev_cgroup = cgroup_to_devcgroup(cgroup);
+ mutex_lock(&devcgroup_mutex);
dev_exception_clean(dev_cgroup);
+ mutex_unlock(&devcgroup_mutex);
kfree(dev_cgroup);
}