diff options
| author | Bjorn Helgaas | 2005-09-28 14:03:08 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2005-10-28 15:36:58 -0700 |
| commit | fe89cf4c4b7a3d9a0ff95eb0506aa7c9baaccda1 (patch) | |
| tree | 496c9092452395e6d616adedab53e7ac85b199b6 /drivers/pci | |
| parent | c8920f0c8b3b42537ab4a54ff92c11daf48fdfec (diff) | |
[PATCH] cpqphp: add pci_enable_device()
Add pci_{enable,disable}_device() calls. Without pci_enable_device(),
dev->irq is garbage, and cpqphp relies on it.
This fixes a problem reported by Bruno Redondi. He reported a flood
of ACPI interrupts, that caused kacpid to run 100% of the time:
http://bugzilla.kernel.org/show_bug.cgi?id=5312
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/pci/hotplug/cpqphp_core.c | 24 +++++++++++++++++++-----
1 file changed, 19 insertions(+), 5 deletions(-)
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/hotplug/cpqphp_core.c | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/drivers/pci/hotplug/cpqphp_core.c b/drivers/pci/hotplug/cpqphp_core.c index 8c6d3987d461..9aed8efe6a11 100644 --- a/drivers/pci/hotplug/cpqphp_core.c +++ b/drivers/pci/hotplug/cpqphp_core.c @@ -794,12 +794,21 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent) u32 rc; struct controller *ctrl; struct pci_func *func; + int err; + + err = pci_enable_device(pdev); + if (err) { + printk(KERN_ERR MY_NAME ": cannot enable PCI device %s (%d)\n", + pci_name(pdev), err); + return err; + } // Need to read VID early b/c it's used to differentiate CPQ and INTC discovery rc = pci_read_config_word(pdev, PCI_VENDOR_ID, &vendor_id); if (rc || ((vendor_id != PCI_VENDOR_ID_COMPAQ) && (vendor_id != PCI_VENDOR_ID_INTEL))) { err(msg_HPC_non_compaq_or_intel); - return -ENODEV; + rc = -ENODEV; + goto err_disable_device; } dbg("Vendor ID: %x\n", vendor_id); @@ -807,7 +816,8 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent) dbg("revision: %d\n", rev); if (rc || ((vendor_id == PCI_VENDOR_ID_COMPAQ) && (!rev))) { err(msg_HPC_rev_error); - return -ENODEV; + rc = -ENODEV; + goto err_disable_device; } /* Check for the proper subsytem ID's @@ -820,18 +830,20 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent) rc = pci_read_config_word(pdev, PCI_SUBSYSTEM_VENDOR_ID, &subsystem_vid); if (rc) { err("%s : pci_read_config_word failed\n", __FUNCTION__); - return rc; + goto err_disable_device; } dbg("Subsystem Vendor ID: %x\n", subsystem_vid); if ((subsystem_vid != PCI_VENDOR_ID_COMPAQ) && (subsystem_vid != PCI_VENDOR_ID_INTEL)) { err(msg_HPC_non_compaq_or_intel); - return -ENODEV; + rc = -ENODEV; + goto err_disable_device; } ctrl = (struct controller *) kmalloc(sizeof(struct controller), GFP_KERNEL); if (!ctrl) { err("%s : out of memory\n", __FUNCTION__); - return -ENOMEM; + rc = -ENOMEM; + goto err_disable_device; } memset(ctrl, 0, sizeof(struct controller)); @@ -1264,6 +1276,8 @@ err_free_bus: kfree(ctrl->pci_bus); err_free_ctrl: kfree(ctrl); +err_disable_device: + pci_disable_device(pdev); return rc; } |