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staging/rts_pstor: fix Polling thread wakeups CPU
author
Cho, Yu-Chen
<acho@novell.com>
Tue, 3 May 2011 09:53:35 +0000
(17:53 +0800)
committer
Greg Kroah-Hartman
<gregkh@suse.de>
Tue, 3 May 2011 19:48:37 +0000
(12:48 -0700)
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@novell.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/staging/rts_pstor/rtsx.c
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diff --git
a/drivers/staging/rts_pstor/rtsx.c
b/drivers/staging/rts_pstor/rtsx.c
index
02525d5
..
5ff59f2
100644
(file)
--- 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));