[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>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/ata/pata_jmicron.c b/drivers/ata/pata_jmicron.c
index 6832a643a9eb..3bdb6f2fa5ba 100644
--- a/drivers/ata/pata_jmicron.c
+++ b/drivers/ata/pata_jmicron.c
@@ -51,7 +51,7 @@ static int jmicron_pre_reset(struct ata_port *ap)
         /* Check if our port is enabled */
         pci_read_config_dword(pdev, 0x40, &control);
         if ((control & port_mask) == 0)
-                return 0;
+                return -ENOENT;
 
         /* There are two basic mappings. One has the two SATA ports merged
            as master/slave and the secondary as PATA, the other has only the