net/ibmvnic: prevent more than one thread from running in reset
The current code allows more than one thread to run in reset. This can corrupt struct adapter data. Check adapter->resetting before performing a reset, if there is another reset running delay (100 msec) before trying again. Signed-off-by: Juliet Kim <julietk@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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