qlcnic: Fix number of rings when we fall back from msix to legacy.

o Driver was not re-setting sds ring count to 1 after failing
   to allocate msi-x interrupts.
Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c

@@ -340,6 +340,7 @@ int qlcnic_83xx_setup_intr(struct qlcnic_adapter *adapter)
 			if (qlcnic_sriov_vf_check(adapter))
 				return -EINVAL;
 			num_msix = 1;
+			adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
 			adapter->drv_tx_rings = QLCNIC_SINGLE_RING;
 		}
 	}

drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c

@@ -816,6 +816,7 @@ static int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter)
 
 		if (!(adapter->flags & QLCNIC_MSIX_ENABLED)) {
 			qlcnic_disable_multi_tx(adapter);
+			adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
 
 			err = qlcnic_enable_msi_legacy(adapter);
 			if (err)