sky2: fix suspend/resume races
There are a couple of possible races on suspend/resume. First the driver needs to block new packets from being queued for Tx. The other less likely problem is the watchdog timer going off during resume. Signed-off-by: NStephen Hemminger <shemminger@vyatta.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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