genirq: Consolidate IRQ_DISABLED

Handle IRQ_DISABLED consistent.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/kernel/irq/spurious.c b/kernel/irq/spurious.c
index c300b8f..89e5e16 100644
--- a/kernel/irq/spurious.c
+++ b/kernel/irq/spurious.c
@@ -301,7 +301,7 @@
 		 * Now kill the IRQ
 		 */
 		printk(KERN_EMERG "Disabling IRQ #%d\n", irq);
-		desc->status |= IRQ_DISABLED | IRQ_SPURIOUS_DISABLED;
+		desc->status |= IRQ_SPURIOUS_DISABLED;
 		desc->depth++;
 		irq_disable(desc);