diff --git a/[refs] b/[refs]
index 8ff9fd9a0947..dd37d67597dc 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: a3ed495190ebe918f4584291ed8c76f1c97a84fd
+refs/heads/master: 937893cf5be53203eabc6f4db29f86b1fdeea203
diff --git a/trunk/arch/mips/oprofile/op_model_loongson2.c b/trunk/arch/mips/oprofile/op_model_loongson2.c
index 575cd1473475..475ff46712ab 100644
--- a/trunk/arch/mips/oprofile/op_model_loongson2.c
+++ b/trunk/arch/mips/oprofile/op_model_loongson2.c
@@ -1,7 +1,7 @@
 /*
  * Loongson2 performance counter driver for oprofile
  *
- * Copyright (C) 2009 Lemote Inc. & Insititute of Computing Technology
+ * Copyright (C) 2009 Lemote Inc.
  * Author: Yanhua <yanh@lemote.com>
  * Author: Wu Zhangjin <wuzj@lemote.com>
  *
@@ -125,6 +125,9 @@ static irqreturn_t loongson2_perfcount_handler(int irq, void *dev_id)
 	 */
 
 	/* Check whether the irq belongs to me */
+	enabled = read_c0_perfcnt() & LOONGSON2_PERFCNT_INT_EN;
+	if (!enabled)
+		return IRQ_NONE;
 	enabled = reg.cnt1_enabled | reg.cnt2_enabled;
 	if (!enabled)
 		return IRQ_NONE;