1 files changed, 11 insertions, 4 deletions

diff --git a/drivers/net/qlcnic/qlcnic_init.c b/drivers/net/qlcnic/qlcnic_init.c
index 01ce74ee99f9..1b621ca13e25 100644
--- a/drivers/net/qlcnic/qlcnic_init.c
+++ b/drivers/net/qlcnic/qlcnic_init.c
@@ -1287,6 +1287,7 @@ qlcnic_alloc_rx_skb(struct qlcnic_adapter *adapter,
                         rds_ring->dma_size, PCI_DMA_FROMDEVICE);
 
         if (pci_dma_mapping_error(pdev, dma)) {
+                adapter->stats.rx_dma_map_error++;
                 dev_kfree_skb_any(skb);
                 buffer->skb = NULL;
                 return -ENOMEM;
@@ -1311,8 +1312,10 @@ static struct sk_buff *qlcnic_process_rxbuf(struct qlcnic_adapter *adapter,
                         PCI_DMA_FROMDEVICE);
 
         skb = buffer->skb;
-        if (!skb)
+        if (!skb) {
+                adapter->stats.null_skb++;
                 goto no_skb;
+        }
 
         if (likely(adapter->rx_csum && cksum == STATUS_CKSUM_OK)) {
                 adapter->stats.csummed++;
@@ -1502,6 +1505,8 @@ qlcnic_process_rcv_ring(struct qlcnic_host_sds_ring *sds_ring, int max)
 
                 if (rxbuf)
                         list_add_tail(&rxbuf->list, &sds_ring->free_list[ring]);
+                else
+                        adapter->stats.null_rxbuf++;
 
 skip:
                 for (; desc_cnt > 0; desc_cnt--) {
@@ -1549,9 +1554,10 @@ qlcnic_post_rx_buffers(struct qlcnic_adapter *adapter, u32 ringid,
         int producer, count = 0;
         struct list_head *head;
 
+        spin_lock(&rds_ring->lock);
+
         producer = rds_ring->producer;
 
-        spin_lock(&rds_ring->lock);
         head = &rds_ring->free_list;
         while (!list_empty(head)) {
 
@@ -1573,13 +1579,13 @@ qlcnic_post_rx_buffers(struct qlcnic_adapter *adapter, u32 ringid,
 
                 producer = get_next_index(producer, rds_ring->num_desc);
         }
-        spin_unlock(&rds_ring->lock);
 
         if (count) {
                 rds_ring->producer = producer;
                 writel((producer-1) & (rds_ring->num_desc-1),
                                 rds_ring->crb_rcv_producer);
         }
+        spin_unlock(&rds_ring->lock);
 }
 
 static void
@@ -1591,10 +1597,11 @@ qlcnic_post_rx_buffers_nodb(struct qlcnic_adapter *adapter,
         int producer, count = 0;
         struct list_head *head;
 
-        producer = rds_ring->producer;
         if (!spin_trylock(&rds_ring->lock))
                 return;
 
+        producer = rds_ring->producer;
+
         head = &rds_ring->free_list;
         while (!list_empty(head)) {