X-Git-Url: http://pileus.org/git/?a=blobdiff_plain;f=security%2Fdevice_cgroup.c;h=d794abcc4b3b7e5e87173ba8ca45deca5b6d09d8;hb=3c03c46ac80ea7edc3b8f2ba85085de54aec15cd;hp=19ecc8de9e6bfd837e2589546fdfe49b04b23ed0;hpb=54e37b8dbe9a398f74cef313404bd2f1deca7853;p=~andy%2Flinux

diff --git a/security/device_cgroup.c b/security/device_cgroup.c
index 19ecc8de9e6..d794abcc4b3 100644
--- 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);
 }