staging: unisys: visornic - ensure proper net locking in tx reset logic
visornic tx reset handling is done asynchronously via a workqueue in
visornic_timeout_reset(). As a result, it needs to use rtnl_lock() /
rtnl_unlock() to lock against possible simultaneous close() of the network
device.
(I consulted the bnx2 driver as a model here, as that driver also does
its tx reset handling asynchronously, just like visornic does. See
bnx2_tx_timeout() and bnx2_reset_task().)
Signed-off-by: Tim Sell <Timothy.Sell@unisys.com>
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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