diff --git a/[refs] b/[refs]
index e12deafba35b..0a25e42dbf9c 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 2977fb3ffc8493a2f4f0a362e8660a6cde9f1bb9
+refs/heads/master: a7428cd2ef77734465e36bceb43290e37e2a97c6
diff --git a/trunk/arch/x86/kernel/apic/io_apic.c b/trunk/arch/x86/kernel/apic/io_apic.c
index ffd8fdfcbe4c..2a145d3a8375 100644
--- a/trunk/arch/x86/kernel/apic/io_apic.c
+++ b/trunk/arch/x86/kernel/apic/io_apic.c
@@ -503,6 +503,10 @@ static void add_pin_to_irq_node(struct irq_cfg *cfg, int node, int apic, int pin
 	}
 
 	entry = get_one_free_irq_2_pin(node);
+	if (!entry) {
+		printk(KERN_ERR "can not alloc irq_pin_list\n");
+		BUG_ON(1);
+	}
 	entry->apic = apic;
 	entry->pin = pin;