3.3-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Tushar Dave <[email protected]>

commit 8ce6909f77ba1b7bcdea65cc2388fd1742b6d669 upstream.

Killing reset task while adapter is resetting causes deadlock.
Only kill reset task if adapter is not resetting.
Ref bug #43132 on bugzilla.kernel.org

Signed-off-by: Tushar Dave <[email protected]>
Tested-by: Aaron Brown <[email protected]>
Signed-off-by: Jeff Kirsher <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

---
 drivers/net/ethernet/intel/e1000/e1000_main.c |    6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

--- a/drivers/net/ethernet/intel/e1000/e1000_main.c
+++ b/drivers/net/ethernet/intel/e1000/e1000_main.c
@@ -492,7 +492,11 @@ out:
 static void e1000_down_and_stop(struct e1000_adapter *adapter)
 {
        set_bit(__E1000_DOWN, &adapter->flags);
-       cancel_work_sync(&adapter->reset_task);
+
+       /* Only kill reset task if adapter is not resetting */
+       if (!test_bit(__E1000_RESETTING, &adapter->flags))
+               cancel_work_sync(&adapter->reset_task);
+
        cancel_delayed_work_sync(&adapter->watchdog_task);
        cancel_delayed_work_sync(&adapter->phy_info_task);
        cancel_delayed_work_sync(&adapter->fifo_stall_task);


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