qlge: pull NULL check ahead of dereference

There was a dereference before NULL check issue introduced in 1e213303d
"qlge: Add tx multiqueue support."  I've pulled the NULL check of
"net_rsp" forward a couple lines to avoid that.

Also Ron Mercer says that the early exit should be above the index
write.  ql_write_cq_idx(rx_ring);

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/net/qlge/qlge_main.c b/drivers/net/qlge/qlge_main.c
index 8d63f69b27d9..c9f9754f0784 100644
--- a/drivers/net/qlge/qlge_main.c
+++ b/drivers/net/qlge/qlge_main.c
@@ -2222,10 +2222,11 @@ static int ql_clean_outbound_rx_ring(struct rx_ring *rx_ring)
                 ql_update_cq(rx_ring);
                 prod = ql_read_sh_reg(rx_ring->prod_idx_sh_reg);
         }
+        if (!net_rsp)
+                return 0;
         ql_write_cq_idx(rx_ring);
         tx_ring = &qdev->tx_ring[net_rsp->txq_idx];
-        if (__netif_subqueue_stopped(qdev->ndev, tx_ring->wq_id) &&
-                                        net_rsp != NULL) {
+        if (__netif_subqueue_stopped(qdev->ndev, tx_ring->wq_id)) {
                 if (atomic_read(&tx_ring->queue_stopped) &&
                     (atomic_read(&tx_ring->tx_count) > (tx_ring->wq_len / 4)))
                         /*