acpi_pci_irq_find_prt_entry(): use list_for_each_entry() instead of list_for_each()

diff -puN drivers/acpi/pci_irq.c~acpi_pci_irq_find_prt_entry-use-list_for_each_entry-instead-of-list_for_each drivers/acpi/pci_irq.c
@@ -51,10 +51,8 @@ static struct acpi_prt_entry *acpi_pci_i
 							  int bus,
 							  int device, int pin)
 {
-	struct list_head *node = NULL;
 	struct acpi_prt_entry *entry = NULL;
 
-
 	if (!acpi_prt.count)
 		return NULL;
 

@@ -64,8 +62,7 @@ static struct acpi_prt_entry *acpi_pci_i
 	 *
 	 */
 	spin_lock(&acpi_prt_lock);
-	list_for_each(node, &acpi_prt.entries) {
-		entry = list_entry(node, struct acpi_prt_entry, node);
+	list_for_each_entry(entry, &acpi_prt.entries, node) {
 		if ((segment == entry->id.segment)
 		    && (bus == entry->id.bus)
 		    && (device == entry->id.device)