[PATCH 3/5] can: af_can.c use rcu_barrier() on module unload.

Jesper Dangaard Brouer
2009-06-08T13:11:38Z

This module uses rcu_call() thus it should use rcu_barrier()
on module unload.

Signed-off-by: Jesper Dangaard Brouer <hawk@comx.dk>
---

net/can/af_can.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/net/can/af_can.c b/net/can/af_can.c
index 10f0528..e733725 100644
--- a/net/can/af_can.c
+++ b/net/can/af_can.c
@@ -903,6 +903,8 @@ static __exit void can_exit(void)
}
spin_unlock(&can_rcvlists_lock);

+ rcu_barrier(); /* Wait for completion of call_rcu()'s */
+
kmem_cache_destroy(rcv_cache);
}