diff options
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c index c8eafbf1f51..139a7040558 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c @@ -4288,7 +4288,15 @@ static struct rtnl_link_stats64 *cxgb_get_stats(struct net_device *dev, struct port_info *p = netdev_priv(dev); struct adapter *adapter = p->adapter; + /* Block retrieving statistics during EEH error + * recovery. Otherwise, the recovery might fail + * and the PCI device will be removed permanently + */ spin_lock(&adapter->stats_lock); + if (!netif_device_present(dev)) { + spin_unlock(&adapter->stats_lock); + return ns; + } t4_get_port_stats(adapter, p->tx_chan, &stats); spin_unlock(&adapter->stats_lock); @@ -5496,12 +5504,14 @@ static pci_ers_result_t eeh_err_detected(struct pci_dev *pdev, rtnl_lock(); adap->flags &= ~FW_OK; notify_ulds(adap, CXGB4_STATE_START_RECOVERY); + spin_lock(&adap->stats_lock); for_each_port(adap, i) { struct net_device *dev = adap->port[i]; netif_device_detach(dev); netif_carrier_off(dev); } + spin_unlock(&adap->stats_lock); if (adap->flags & FULL_INIT_DONE) cxgb_down(adap); rtnl_unlock(); |