[PATCH] libata-eh: Remove layering violation and duplication when handling absent ports

This removes the layering violation where drivers have to fiddle
directly with EH flags. Instead we now recognize -ENOENT means "no port"
and do the handling in the core code.

This also removes an instance of a call to disable the port, and an
identical printk from each driver doing this. Even better - future rule
changes will be in one place only.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/ata/pata_via.c b/drivers/ata/pata_via.c
index 1b2ff13..0e8b130 100644
--- a/drivers/ata/pata_via.c
+++ b/drivers/ata/pata_via.c
@@ -60,7 +60,7 @@
 #include <linux/libata.h>
 
 #define DRV_NAME "pata_via"
-#define DRV_VERSION "0.1.13"
+#define DRV_VERSION "0.1.14"
 
 /*
  *	The following comes directly from Vojtech Pavlik's ide/pci/via82cxxx
@@ -155,11 +155,8 @@
 
 		struct pci_dev *pdev = to_pci_dev(ap->host->dev);
 
-		if (!pci_test_config_bits(pdev, &via_enable_bits[ap->port_no])) {
-			ata_port_disable(ap);
-			printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id);
-			return 0;
-		}
+		if (!pci_test_config_bits(pdev, &via_enable_bits[ap->port_no]))
+			return -ENOENT;
 	}
 
 	if ((config->flags & VIA_UDMA) >= VIA_UDMA_66)