qlcnic: Use pci_enable_msix_exact() instead of pci_enable_msix()

As result of deprecation of MSI-X/MSI enablement functions
pci_enable_msix() and pci_enable_msi_block() all drivers
using these two interfaces need to be updated to use the
new pci_enable_msi_range()  or pci_enable_msi_exact()
and pci_enable_msix_range() or pci_enable_msix_exact()
interfaces.

Cc: Shahed Shaikh <shahed.shaikh@qlogic.com>
Cc: Dept-HSGLinuxNICDev@qlogic.com
Cc: netdev@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Signed-off-by: NAlexander Gordeev <agordeev@redhat.com>
Acked-by: NShahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

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

@@ -690,10 +690,10 @@ int qlcnic_setup_tss_rss_intr(struct qlcnic_adapter *adapter)
 		adapter->msix_entries[vector].entry = vector;
 
 restore:
-	err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
-	if (err > 0) {
+	err = pci_enable_msix_exact(pdev, adapter->msix_entries, num_msix);
+	if (err == -ENOSPC) {
 		if (!adapter->drv_tss_rings && !adapter->drv_rss_rings)
-			return -ENOSPC;
+			return err;
 
 		netdev_info(adapter->netdev,
 			    "Unable to allocate %d MSI-X vectors, Available vectors %d\n",