+int pci_request_irq(struct pci_dev *pdev,
+ irqreturn_t(*handler) (int, void *, struct pt_regs *),
+ unsigned long flags, const char *name)
+{
+ if (!is_irq_valid(pdev->irq)) {
+ dev_printk(KERN_ERR, &pdev->dev,
+ "No usable irq line was found (got #%d)\n",
+ pdev->irq);
+ return -EINVAL;
+ }
+
+ return request_irq(pdev->irq, handler, flags,
+ name ? name : pdev->driver->name,
+ pci_get_drvdata(pdev));
+}
+EXPORT_SYMBOL(pci_request_irq);
+void pci_free_irq(struct pci_dev *pdev)
+{
+ free_irq(pdev->irq, pci_get_drvdata(pdev));
+}
+EXPORT_SYMBOL(pci_free_irq);
Index: 2.6.18-mm3/include/linux/interrupt.h
===================================================================
--- 2.6.18-mm3.orig/include/linux/interrupt.h
+++ 2.6.18-mm3/include/linux/interrupt.h
@@ -75,6 +75,13 @@ struct irqaction {
struct proc_dir_entry *dir;
};
+#ifndef ARCH_VALIDATE_PCI_IRQ
+static inline int is_irq_valid(unsigned int irq)
+{
+ return irq ? 1 : 0;
+}
+#endif /* ARCH_VALIDATE_PCI_IRQ */