diff --git a/[refs] b/[refs]
index 9e41b0b7f9f5..288dc6e54c71 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: b3e998ee05773a3ac33d540aa341295acef4c56b
+refs/heads/master: 70584578ab3e940ac9d7820f268f9adc9884e407
diff --git a/trunk/arch/powerpc/kernel/irq.c b/trunk/arch/powerpc/kernel/irq.c
index a3351561d283..2fc87862146c 100644
--- a/trunk/arch/powerpc/kernel/irq.c
+++ b/trunk/arch/powerpc/kernel/irq.c
@@ -336,7 +336,8 @@ void do_IRQ(struct pt_regs *regs)
 
 void __init init_IRQ(void)
 {
-	ppc_md.init_IRQ();
+	if (ppc_md.init_IRQ)
+		ppc_md.init_IRQ();
 #ifdef CONFIG_PPC64
 	irq_ctx_init();
 #endif