libata-sff: prevent irq descriptions for dummy ports

This is a cosmetic change to prevent libata-sff adding irq
descriptions to dummy ports, since the information, while largely
unused, is erroneous.

Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>

1 files changed, 7 insertions, 2 deletions

diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c
index f8380ce0f4d1..b1b926c55a72 100644
--- a/drivers/ata/libata-sff.c
+++ b/drivers/ata/libata-sff.c
@@ -2447,13 +2447,18 @@ int ata_pci_sff_activate_host(struct ata_host *host,
                 return -ENOMEM;
 
         if (!legacy_mode && pdev->irq) {
+                int i;
+
                 rc = devm_request_irq(dev, pdev->irq, irq_handler,
                                       IRQF_SHARED, drv_name, host);
                 if (rc)
                         goto out;
 
-                ata_port_desc(host->ports[0], "irq %d", pdev->irq);
-                ata_port_desc(host->ports[1], "irq %d", pdev->irq);
+                for (i = 0; i < 2; i++) {
+                        if (ata_port_is_dummy(host->ports[i]))
+                                continue;
+                        ata_port_desc(host->ports[i], "irq %d", pdev->irq);
+                }
         } else if (legacy_mode) {
                 if (!ata_port_is_dummy(host->ports[0])) {
                         rc = devm_request_irq(dev, ATA_PRIMARY_IRQ(pdev),