[PATCH net-next 08/11] ibmvnic: Check adapter state during ibmvnic_poll

[Nathan Fontenot]

We do not want to process any receive frames if the ibmvnic_poll
routine is invoked while a reset is in process. Also, before
replenishing the rx pools in the ibmvnic_poll, we want to
make sure the adapter is not in the process of closing.

Signed-off-by: Nathan Fontenot <nf...@linux.vnet.ibm.com>
---
 drivers/net/ethernet/ibm/ibmvnic.c |    8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/ibm/ibmvnic.c 
b/drivers/net/ethernet/ibm/ibmvnic.c
index 47421e4..760352f 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -1435,6 +1435,10 @@ static int ibmvnic_poll(struct napi_struct *napi, int 
budget)
        struct ibmvnic_adapter *adapter = netdev_priv(netdev);
        int scrq_num = (int)(napi - adapter->napi);
        int frames_processed = 0;
+
+       if (adapter->resetting)
+               return 0;
+
 restart_poll:
        while (frames_processed < budget) {
                struct sk_buff *skb;
@@ -1493,7 +1497,9 @@ static int ibmvnic_poll(struct napi_struct *napi, int 
budget)
                netdev->stats.rx_bytes += length;
                frames_processed++;
        }
-       replenish_rx_pool(adapter, &adapter->rx_pool[scrq_num]);
+
+       if (adapter->state != VNIC_CLOSING)
+               replenish_rx_pool(adapter, &adapter->rx_pool[scrq_num]);
 
        if (frames_processed < budget) {
                enable_scrq_irq(adapter, adapter->rx_scrq[scrq_num]);