linux-kernel - [PATCH v2 18/29] parisc/PCI: use pci_create_root_bus() instead of pci_scan_bus

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Message-ID: <20111014042839.23504.62250.stgit@bhelgaas.mtv.corp.google.com>
Date:	Thu, 13 Oct 2011 22:28:39 -0600
From:	Bjorn Helgaas <bhelgaas@...gle.com>
To:	linux-pci@...r.kernel.org
Cc:	linux-arch@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 18/29] parisc/PCI: use pci_create_root_bus() instead of
	pci_scan_bus_parented()

No functional change here; just converting from the deprecated
pci_scan_bus_parented() to pci_create_root_bus() to make a future
patch simpler.

Signed-off-by: Bjorn Helgaas <bhelgaas@...gle.com>
---
 drivers/parisc/dino.c |   24 +++++++++++++-----------
 1 files changed, 13 insertions(+), 11 deletions(-)

diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index bcd5d54..fba5636 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -1007,22 +1007,24 @@ static int __init dino_probe(struct parisc_device *dev)
 	** It's not used to avoid chicken/egg problems
 	** with configuration accessor functions.
 	*/
-	dino_dev->hba.hba_bus = bus = pci_scan_bus_parented(&dev->dev,
-			 dino_current_bus, &dino_cfg_ops, NULL);
-
-	if(bus) {
-		/* This code *depends* on scanning being single threaded
-		 * if it isn't, this global bus number count will fail
-		 */
-		dino_current_bus = bus->subordinate + 1;
-		pci_bus_assign_resources(bus);
-		pci_bus_add_devices(bus);
-	} else {
+	dino_dev->hba.hba_bus = bus = pci_create_root_bus(&dev->dev,
+			 dino_current_bus, &dino_cfg_ops, NULL, NULL);
+	if (!bus) {
 		printk(KERN_ERR "ERROR: failed to scan PCI bus on %s (duplicate bus number %d?)\n",
 		       dev_name(&dev->dev), dino_current_bus);
 		/* increment the bus number in case of duplicates */
 		dino_current_bus++;
+		return 0;
 	}
+
+	bus->subordinate = pci_scan_child_bus(bus);
+
+	/* This code *depends* on scanning being single threaded
+	 * if it isn't, this global bus number count will fail
+	 */
+	dino_current_bus = bus->subordinate + 1;
+	pci_bus_assign_resources(bus);
+	pci_bus_add_devices(bus);
 	return 0;
 }
 

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