From 33af2d2d144d88aa60835e7422be1990aebb1e55 Mon Sep 17 00:00:00 2001
From: zwp <zwp@rock-chips.com>
Date: Thu, 12 Jul 2012 10:11:07 +0800
Subject: [PATCH] solve gsensor deadlock problem.

---
 drivers/input/sensors/sensor-dev.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/input/sensors/sensor-dev.c b/drivers/input/sensors/sensor-dev.c
index 3b20fcbb33ff..2dc9b8676d52 100755
--- a/drivers/input/sensors/sensor-dev.c
+++ b/drivers/input/sensors/sensor-dev.c
@@ -447,8 +447,10 @@ static long gsensor_dev_ioctl(struct file *file,
 		DBG("%s:GSENSOR_IOCTL_APP_SET_RATE start\n", __func__);		
 		mutex_lock(&sensor->operation_mutex);	
 		result = sensor_reset_rate(client, rate);
-		if (result < 0)
-		goto error;
+		if (result < 0){
+			mutex_unlock(&sensor->operation_mutex);
+			goto error;
+		}
 		if(sensor->status_cur == SENSOR_OFF)
 		{		
 			if(sensor->pdata->irq_enable)
-- 
2.34.1