[PATCH] usb: ueagle-atm: Use wait_event_freezable_timeout() in uea_wait()

[PATCH] usb: ueagle-atm: Use wait_event_freezable_timeout() in uea_wait()

[Kevin Hao]

A freezable kernel thread can enter frozen state during freezing by
either calling try_to_freeze() or using wait_event_freezable() and its
variants. So for the following snippet of code in a kernel thread loop:
  wait_event_interruptible_timeout();
  try_to_freeze();

We can change it to a simple wait_event_freezable_timeout() and
then eliminate a function call.

Signed-off-by: Kevin Hao <haokexin@gmail.com>
---
 drivers/usb/atm/ueagle-atm.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/usb/atm/ueagle-atm.c b/drivers/usb/atm/ueagle-atm.c
index 8d5580d8d20a..16703815be0c 100644
--- a/drivers/usb/atm/ueagle-atm.c
+++ b/drivers/usb/atm/ueagle-atm.c
@@ -546,7 +546,7 @@ MODULE_PARM_DESC(annex,
 
 #define uea_wait(sc, cond, timeo) \
 ({ \
-	int _r = wait_event_interruptible_timeout(sc->sync_q, \
+	int _r = wait_event_freezable_timeout(sc->sync_q, \
 			(cond) || kthread_should_stop(), timeo); \
 	if (kthread_should_stop()) \
 		_r = -ENODEV; \
@@ -1896,7 +1896,6 @@ static int uea_kthread(void *data)
 			ret = sc->stat(sc);
 		if (ret != -EAGAIN)
 			uea_wait(sc, 0, msecs_to_jiffies(1000));
-		try_to_freeze();
 	}
 	uea_leaves(INS_TO_USBDEV(sc));
 	return ret;
-- 
2.39.2