ide: add ide_host_add() helper

Add ide_host_add() helper which does ide_host_alloc()+ide_host_register(),
then convert ide_setup_pci_device[s](), ide_legacy_device_add() and some
host drivers to use it.

While at it:

* Fix ide_setup_pci_device[s](), ide_arm.c, gayle.c, ide-4drives.c,
  macide.c, q40ide.c, cmd640.c and cs5520.c to return correct error value.

* -ENOENT -> -ENOMEM in rapide.c, ide-h8300.c, ide-generic.c, au1xxx-ide.c
  and pmac.c

* -ENODEV -> -ENOMEM in palm_bk3710.c, ide_platform.c and delkin_cb.c

* -1 -> -ENOMEM in ide-pnp.c

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 4 insertions, 6 deletions

diff --git a/drivers/ide/pci/scc_pata.c b/drivers/ide/pci/scc_pata.c
index d5e2ba6bacd6..94a7ab864236 100644
--- a/drivers/ide/pci/scc_pata.c
+++ b/drivers/ide/pci/scc_pata.c
@@ -588,7 +588,7 @@ static int scc_ide_setup_pci_device(struct pci_dev *dev,
         struct scc_ports *ports = pci_get_drvdata(dev);
         struct ide_host *host;
         hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL };
-        int i;
+        int i, rc;
 
         memset(&hw, 0, sizeof(hw));
         for (i = 0; i <= 8; i++)
@@ -597,11 +597,9 @@ static int scc_ide_setup_pci_device(struct pci_dev *dev,
         hw.dev = &dev->dev;
         hw.chipset = ide_pci;
 
-        host = ide_host_alloc(d, hws);
-        if (host == NULL)
-                return -ENOMEM;
-
-        ide_host_register(host, d, hws);
+        rc = ide_host_add(d, hws, &host);
+        if (rc)
+                return rc;
 
         ports->host = host;