PNPACPI: simplify irq_flags()

No need for a temporary variable; just return the flags once we know them.
Signed-off-by: NBjorn Helgaas <bjorn.helgaas@hp.com>
Acked-by: NAdam Belay <abelay@novell.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

drivers/pnp/pnpacpi/rsparser.c

@@ -34,20 +34,17 @@
  */
 static int irq_flags(int triggering, int polarity)
 {
-	int flag;
-
 	if (triggering == ACPI_LEVEL_SENSITIVE) {
 		if (polarity == ACPI_ACTIVE_LOW)
-			flag = IORESOURCE_IRQ_LOWLEVEL;
+			return IORESOURCE_IRQ_LOWLEVEL;
 		else
-			flag = IORESOURCE_IRQ_HIGHLEVEL;
+			return IORESOURCE_IRQ_HIGHLEVEL;
 	} else {
 		if (polarity == ACPI_ACTIVE_LOW)
-			flag = IORESOURCE_IRQ_LOWEDGE;
+			return IORESOURCE_IRQ_LOWEDGE;
 		else
-			flag = IORESOURCE_IRQ_HIGHEDGE;
+			return IORESOURCE_IRQ_HIGHEDGE;
 	}
-	return flag;
 }
 
 static void decode_irq_flags(int flag, int *triggering, int *polarity)