dvb-Convert-mutex-to-semaphore.patch

From 0ff146a20360b761676a033e049c2ea593b7cdfe Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Sun, 26 Jul 2009 00:05:39 +0200
Subject: [PATCH] dvb: Convert "mutex" to semaphore

commit 90b1a4a56f1f4b02f260fa19467ed1bb7ad095b0 in tip.

The usage of this "mutex" is non obvious and probably a completion in
some places. Make it a semaphore.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---
 drivers/media/dvb/dvb-core/dvb_frontend.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.c b/drivers/media/dvb/dvb-core/dvb_frontend.c
index 55ea260..29b4504 100644
--- a/drivers/media/dvb/dvb-core/dvb_frontend.c
+++ b/drivers/media/dvb/dvb-core/dvb_frontend.c
@@ -694,7 +694,7 @@ static void dvb_frontend_stop(struct dvb_frontend *fe)
 
 	kthread_stop(fepriv->thread);
 
-	init_MUTEX (&fepriv->sem);
+	sema_init(&fepriv->sem, 1);
 	fepriv->state = FESTATE_IDLE;
 
 	/* paranoia check in case a signal arrived */
@@ -2052,7 +2052,7 @@ int dvb_register_frontend(struct dvb_adapter* dvb,
 	}
 	fepriv = fe->frontend_priv;
 
-	init_MUTEX (&fepriv->sem);
+	sema_init(&fepriv->sem, 1);
 	init_waitqueue_head (&fepriv->wait_queue);
 	init_waitqueue_head (&fepriv->events.wait_queue);
 	mutex_init(&fepriv->events.mtx);
-- 
1.7.0.4