[PATCH] staging/rts_pstor: fix Polling thread wakeups CPU

[Cho, Yu-Chen]

RealTek PCI-E Card Reader rts_pstor driver causes CPU wakeup very
frequently, thatt's bad for power consumption.

Signed-off-by: Cho, Yu-Chen <acho at novell.com>
---
 drivers/staging/rts_pstor/rtsx.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/drivers/staging/rts_pstor/rtsx.c b/drivers/staging/rts_pstor/rtsx.c
index 02525d5..5ff59f2 100644
--- a/drivers/staging/rts_pstor/rtsx.c
+++ b/drivers/staging/rts_pstor/rtsx.c
@@ -594,7 +594,9 @@ static int rtsx_polling_thread(void *__dev)
 	wait_timeout((delay_use + 5) * 1000);
 
 	for (;;) {
-		wait_timeout(POLLING_INTERVAL);
+
+		set_current_state(TASK_INTERRUPTIBLE);
+		schedule_timeout(POLLING_INTERVAL);
 
 		/* lock the device pointers */
 		mutex_lock(&(dev->dev_mutex));
-- 
1.7.1