Messages in this thread Patch in this message | | | Subject | [PATCH] powerpc/PCI hotplug: shuffle error checking to better location. | Date | Fri, 20 Jan 2006 11:04:40 -0800 | From | Greg KH <> |
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[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>
--- commit 2f8d04252f3ae653d142229c2f28ff88afb46ed8 tree da6abf3cc396887e3ccd3f13d2c938388ff66e52 parent 3138b8204e439aaa9ee4a6693ed1305ac36e356e author linas@austin.ibm.com <linas@austin.ibm.com> Thu, 12 Jan 2006 18:35:23 -0600 committer Greg Kroah-Hartman <gregkh@suse.de> Fri, 20 Jan 2006 10:29:36 -0800
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 d3aa9df..3eefe2c 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 dev 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_de 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 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 /* 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", - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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