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ACPI: PCI: remove unnecessary null pointer checks

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Better to oops and learn about a bug than to silently cover it up.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Bjorn Helgaas 2008-12-08 21:30:10 -07:00 committed by Len Brown
parent 21a53283a0
commit 3b8249de43
1 changed files with 0 additions and 18 deletions
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18
drivers/acpi/pci_irq.c
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@ -178,10 +178,6 @@ acpi_pci_irq_add_entry(acpi_handle handle,
{
struct acpi_prt_entry *entry = NULL;
if (!prt)
return -EINVAL;
entry = kzalloc(sizeof(struct acpi_prt_entry), GFP_KERNEL);
if (!entry)
return -ENOMEM;
@ -432,9 +428,6 @@ acpi_pci_irq_derive(struct pci_dev *dev,
u8 bridge_pin = 0, orig_pin = pin;
if (!dev)
return -EINVAL;
/*
* Attempt to derive an IRQ for this device from a parent bridge's
* PCI interrupt routing entry (eg. yenta bridge and add-in card bridge).
@ -491,9 +484,6 @@ int acpi_pci_irq_enable(struct pci_dev *dev)
int rc;
if (!dev)
return -EINVAL;
pin = dev->pin;
if (!pin) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
@ -503,11 +493,6 @@ int acpi_pci_irq_enable(struct pci_dev *dev)
}
pin--;
if (!dev->bus) {
dev_err(&dev->dev, "invalid (NULL) 'bus' field\n");
return -ENODEV;
}
/*
* First we check the PCI IRQ routing table (PRT) for an IRQ. PRT
* values override any BIOS-assigned IRQs set during boot.
@ -586,9 +571,6 @@ void acpi_pci_irq_disable(struct pci_dev *dev)
int polarity = ACPI_ACTIVE_LOW;
if (!dev || !dev->bus)
return;
pin = dev->pin;
if (!pin)
return;