diff options
| author | linas@austin.ibm.com <linas@austin.ibm.com> | 2006-01-12 18:35:23 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-01-31 18:00:13 -0800 |
| commit | 8737d6a90cd8b085c2ea9cb4c7443c87f86c3429 (patch) | |
| tree | 88a6148ed1dd5d98f9d3ef89b4639e210d0ee19b | |
| parent | b64a71ab5c9098a79ccb463af968933483458a0f (diff) | |
[PATCH] powerpc/PCI hotplug: shuffle error checking to better location.
Error checking is scattered through various layers of the dlpar code,
leading to a somewhat opaque code structure. This patch consolidates
error checking in one routine, simplifying the code a tad. There's
also some whitespace cleanup here too.
Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Acked-by: John Rose <johnrose@austin.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/pci/hotplug/rpadlpar_core.c | 44 |
1 files changed, 22 insertions, 22 deletions
diff --git a/drivers/pci/hotplug/rpadlpar_core.c b/drivers/pci/hotplug/rpadlpar_core.c index d3aa9df1acd..3eefe2cec72 100644 --- a/drivers/pci/hotplug/rpadlpar_core.c +++ b/drivers/pci/hotplug/rpadlpar_core.c @@ -103,13 +103,13 @@ static struct slot *find_slot(struct device_node *dn) struct list_head *tmp, *n; struct slot *slot; - list_for_each_safe(tmp, n, &rpaphp_slot_head) { - slot = list_entry(tmp, struct slot, rpaphp_slot_list); - if (slot->dn == dn) - return slot; - } + list_for_each_safe(tmp, n, &rpaphp_slot_head) { + slot = list_entry(tmp, struct slot, rpaphp_slot_list); + if (slot->dn == dn) + return slot; + } - return NULL; + return NULL; } static struct pci_dev *dlpar_find_new_dev(struct pci_bus *parent, @@ -126,9 +126,9 @@ static struct pci_dev *dlpar_find_new_dev(struct pci_bus *parent, return NULL; } -static struct pci_dev *dlpar_pci_add_bus(struct device_node *dn) +static void dlpar_pci_add_bus(struct device_node *dn) { - struct pci_dn *pdn = dn->data; + struct pci_dn *pdn = PCI_DN(dn); struct pci_controller *phb = pdn->phb; struct pci_dev *dev = NULL; @@ -139,7 +139,7 @@ static struct pci_dev *dlpar_pci_add_bus(struct device_node *dn) if (!dev) { printk(KERN_ERR "%s: failed to create pci dev for %s\n", __FUNCTION__, dn->full_name); - return NULL; + return; } if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE || @@ -156,35 +156,35 @@ static struct pci_dev *dlpar_pci_add_bus(struct device_node *dn) /* Add new devices to global lists. Register in proc, sysfs. */ pci_bus_add_devices(phb->bus); - - /* Confirm new bridge dev was created */ - dev = dlpar_find_new_dev(phb->bus, dn); - if (dev) { - if (dev->hdr_type != PCI_HEADER_TYPE_BRIDGE) { - printk(KERN_ERR "%s: unexpected header type %d\n", - __FUNCTION__, dev->hdr_type); - return NULL; - } - } - - return dev; } static int dlpar_add_pci_slot(char *drc_name, struct device_node *dn) { struct pci_dev *dev; + struct pci_controller *phb; if (pcibios_find_pci_bus(dn)) return -EINVAL; /* Add pci bus */ - dev = dlpar_pci_add_bus(dn); + dlpar_pci_add_bus(dn); + + /* Confirm new bridge dev was created */ + phb = PCI_DN(dn)->phb; + dev = dlpar_find_new_dev(phb->bus, dn); + if (!dev) { printk(KERN_ERR "%s: unable to add bus %s\n", __FUNCTION__, drc_name); return -EIO; } + if (dev->hdr_type != PCI_HEADER_TYPE_BRIDGE) { + printk(KERN_ERR "%s: unexpected header type %d, unable to add bus %s\n", + __FUNCTION__, dev->hdr_type, drc_name); + return -EIO; + } + /* Add hotplug slot */ if (rpaphp_add_slot(dn)) { printk(KERN_ERR "%s: unable to add hotplug slot %s\n", |