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On e1000_down(), we should ensure every asynchronous work is canceled before proceeding. Since the watchdog_task can schedule other works apart from itself, it should be stopped first, but currently it is stopped after the reset_task. This can result in the following race leading to the reset_task running after the module unload: e1000_down_and_stop(): e1000_watchdog(): ---------------------- ----------------- cancel_work_sync(reset_task) schedule_work(reset_task) cancel_delayed_work_sync(watchdog_task) The patch moves cancel_delayed_work_sync(watchdog_task) at the beginning of e1000_down_and_stop() thus ensuring the race is impossible. Cc: Tushar Dave <tushar.n.dave@intel.com> Cc: Patrick McHardy <kaber@trash.net> Signed-off-by: Vladimir Davydov <vdavydov@parallels.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> |
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| appletalk | ||
| arcnet | ||
| bonding | ||
| caif | ||
| can | ||
| cris | ||
| dsa | ||
| ethernet | ||
| fddi | ||
| hamradio | ||
| hippi | ||
| hyperv | ||
| ieee802154 | ||
| irda | ||
| phy | ||
| plip | ||
| ppp | ||
| slip | ||
| team | ||
| usb | ||
| vmxnet3 | ||
| wan | ||
| wimax | ||
| wireless | ||
| xen-netback | ||
| dummy.c | ||
| eql.c | ||
| ifb.c | ||
| Kconfig | ||
| LICENSE.SRC | ||
| loopback.c | ||
| macvlan.c | ||
| macvtap.c | ||
| Makefile | ||
| mdio.c | ||
| mii.c | ||
| netconsole.c | ||
| nlmon.c | ||
| ntb_netdev.c | ||
| rionet.c | ||
| sb1000.c | ||
| Space.c | ||
| sungem_phy.c | ||
| tun.c | ||
| veth.c | ||
| virtio_net.c | ||
| vxlan.c | ||
| xen-netfront.c | ||