From 0aa76ce3324e324d3091aef0c3e22c249ae4b693 Mon Sep 17 00:00:00 2001 From: "Huang, Xiong" Date: Mon, 30 Apr 2012 15:38:55 +0000 Subject: [PATCH] atl1c: cancel task when interface closed common_task might be running while close routine is called, wait/cancel it. Signed-off-by: xiong Tested-by: Liu David Signed-off-by: David S. Miller --- drivers/net/ethernet/atheros/atl1c/atl1c_main.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c index d910dbb..b95ef45 100644 --- a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c +++ b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c @@ -330,6 +330,9 @@ static void atl1c_common_task(struct work_struct *work) adapter = container_of(work, struct atl1c_adapter, common_task); netdev = adapter->netdev; + if (test_bit(__AT_DOWN, &adapter->flags)) + return; + if (test_and_clear_bit(ATL1C_WORK_EVENT_RESET, &adapter->work_event)) { netif_device_detach(netdev); atl1c_down(adapter); @@ -2311,6 +2314,8 @@ static int atl1c_close(struct net_device *netdev) struct atl1c_adapter *adapter = netdev_priv(netdev); WARN_ON(test_bit(__AT_RESETTING, &adapter->flags)); + set_bit(__AT_DOWN, &adapter->flags); + cancel_work_sync(&adapter->common_task); atl1c_down(adapter); atl1c_free_ring_resources(adapter); return 0; -- 2.7.4