ACPI: catch calls of acpi_driver_data on pointer of wrong type

[linux-2.6-omap-h63xx.git] / drivers / acpi / pci_link.c

diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c
index 89f3b2abfdc7b9f15f65513cdb1d852712735c8f..54cd77a0a78e0206b6e58232008f876e1e6186dc 100644 (file)
--- a/drivers/acpi/pci_link.c
+++ b/drivers/acpi/pci_link.c
@@ -737,7 +737,7 @@ static int acpi_pci_link_add(struct acpi_device *device)
        link->device = device;
        strcpy(acpi_device_name(device), ACPI_PCI_LINK_DEVICE_NAME);
        strcpy(acpi_device_class(device), ACPI_PCI_LINK_CLASS);
-       acpi_driver_data(device) = link;
+       device->driver_data = link;
 
        mutex_lock(&acpi_link_lock);
        result = acpi_pci_link_get_possible(link);
@@ -849,7 +849,7 @@ static int __init acpi_irq_penalty_update(char *str, int used)
                if (irq < 0)
                        continue;
 
-               if (irq >= ACPI_MAX_IRQS)
+               if (irq >= ARRAY_SIZE(acpi_irq_penalty))
                        continue;
 
                if (used)
@@ -872,10 +872,12 @@ static int __init acpi_irq_penalty_update(char *str, int used)
  */
 void acpi_penalize_isa_irq(int irq, int active)
 {
-       if (active)
-               acpi_irq_penalty[irq] += PIRQ_PENALTY_ISA_USED;
-       else
-               acpi_irq_penalty[irq] += PIRQ_PENALTY_PCI_USING;
+       if (irq >= 0 && irq < ARRAY_SIZE(acpi_irq_penalty)) {
+               if (active)
+                       acpi_irq_penalty[irq] += PIRQ_PENALTY_ISA_USED;
+               else
+                       acpi_irq_penalty[irq] += PIRQ_PENALTY_PCI_USING;
+       }
 }
 
 /*