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ibmvnic: Return from ibmvnic_resume if not in VNIC_OPEN state 

If the ibmvnic driver is not in the VNIC_OPEN state, return from
ibmvnic_resume callback. If we are not in the VNIC_OPEN state, interrupts
may not be initialized and directly calling the interrupt handler will
cause a crash.

Signed-off-by: John Allen <jallen@linux.vnet.ibm.com>
Reviewed-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
John Allen 2017-06-19 11:27:53 -05:00 committed by David S. Miller
parent ca83697cdc
commit cb89ba243b
1 changed files with 3 additions and 0 deletions
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3
drivers/net/ethernet/ibm/ibmvnic.c
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@ -3859,6 +3859,9 @@ static int ibmvnic_resume(struct device *dev)
struct ibmvnic_adapter *adapter = netdev_priv(netdev);
int i;
if (adapter->state != VNIC_OPEN)
return 0;
/* kick the interrupt handlers just in case we lost an interrupt */
for (i = 0; i < adapter->req_rx_queues; i++)
ibmvnic_interrupt_rx(adapter->rx_scrq[i]->irq,