V4L/DVB (3318b): sem2mutex: drivers/media/, #2

Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

31 files changed, 262 insertions, 251 deletions

diff --git a/drivers/media/dvb/b2c2/flexcop-common.h b/drivers/media/dvb/b2c2/flexcop-common.h
index 7d7e1613c5a..b3dd0603cd9 100644
--- a/drivers/media/dvb/b2c2/flexcop-common.h
+++ b/drivers/media/dvb/b2c2/flexcop-common.h
@@ -10,6 +10,7 @@
 
 #include <linux/config.h>
 #include <linux/pci.h>
+#include <linux/mutex.h>
 
 #include "flexcop-reg.h"
 
@@ -73,8 +74,7 @@ struct flexcop_device {
 	int (*fe_sleep) (struct dvb_frontend *);
 
 	struct i2c_adapter i2c_adap;
-	struct semaphore i2c_sem;
-
+	struct mutex i2c_mutex;
 	struct module *owner;
 
 	/* options and status */
diff --git a/drivers/media/dvb/b2c2/flexcop-i2c.c b/drivers/media/dvb/b2c2/flexcop-i2c.c
index 56495cb6cd0..e0bd2d8f0f0 100644
--- a/drivers/media/dvb/b2c2/flexcop-i2c.c
+++ b/drivers/media/dvb/b2c2/flexcop-i2c.c
@@ -135,7 +135,7 @@ static int flexcop_master_xfer(struct i2c_adapter *i2c_adap, struct i2c_msg msgs
 	struct flexcop_device *fc = i2c_get_adapdata(i2c_adap);
 	int i, ret = 0;
 
-	if (down_interruptible(&fc->i2c_sem))
+	if (mutex_lock_interruptible(&fc->i2c_mutex))
 		return -ERESTARTSYS;
 
 	/* reading */
@@ -161,7 +161,7 @@ static int flexcop_master_xfer(struct i2c_adapter *i2c_adap, struct i2c_msg msgs
 	else
 		ret = num;
 
-	up(&fc->i2c_sem);
+	mutex_unlock(&fc->i2c_mutex);
 
 	return ret;
 }
@@ -180,7 +180,7 @@ int flexcop_i2c_init(struct flexcop_device *fc)
 {
 	int ret;
 
-	sema_init(&fc->i2c_sem,1);
+	mutex_init(&fc->i2c_mutex);
 
 	memset(&fc->i2c_adap, 0, sizeof(struct i2c_adapter));
 	strncpy(fc->i2c_adap.name, "B2C2 FlexCop device",I2C_NAME_SIZE);
diff --git a/drivers/media/dvb/bt8xx/bt878.c b/drivers/media/dvb/bt8xx/bt878.c
index 34c3189a1a3..d276ce6b366 100644
--- a/drivers/media/dvb/bt8xx/bt878.c
+++ b/drivers/media/dvb/bt8xx/bt878.c
@@ -344,7 +344,7 @@ bt878_device_control(struct bt878 *bt, unsigned int cmd, union dst_gpio_packet *
 	int retval;
 
 	retval = 0;
-	if (down_interruptible (&bt->gpio_lock))
+	if (mutex_lock_interruptible(&bt->gpio_lock))
 		return -ERESTARTSYS;
 	/* special gpio signal */
 	switch (cmd) {
@@ -375,7 +375,7 @@ bt878_device_control(struct bt878 *bt, unsigned int cmd, union dst_gpio_packet *
 		retval = -EINVAL;
 		break;
 	}
-	up(&bt->gpio_lock);
+	mutex_unlock(&bt->gpio_lock);
 	return retval;
 }
 
diff --git a/drivers/media/dvb/bt8xx/bt878.h b/drivers/media/dvb/bt8xx/bt878.h
index 9faf93770d0..f685bc12960 100644
--- a/drivers/media/dvb/bt8xx/bt878.h
+++ b/drivers/media/dvb/bt8xx/bt878.h
@@ -25,6 +25,8 @@
 #include <linux/pci.h>
 #include <linux/sched.h>
 #include <linux/spinlock.h>
+#include <linux/mutex.h>
+
 #include "bt848.h"
 #include "bttv.h"
 
@@ -108,7 +110,7 @@ struct cards {
 extern int bt878_num;
 
 struct bt878 {
-	struct semaphore  gpio_lock;
+	struct mutex gpio_lock;
 	unsigned int nr;
 	unsigned int bttv_nr;
 	struct i2c_adapter *adapter;
diff --git a/drivers/media/dvb/bt8xx/dst.c b/drivers/media/dvb/bt8xx/dst.c
index 3a2ff1cc24b..d800df1212c 100644
--- a/drivers/media/dvb/bt8xx/dst.c
+++ b/drivers/media/dvb/bt8xx/dst.c
@@ -910,7 +910,7 @@ static int dst_get_device_id(struct dst_state *state)
 
 static int dst_probe(struct dst_state *state)
 {
-	sema_init(&state->dst_mutex, 1);
+	mutex_init(&state->dst_mutex);
 	if ((rdc_8820_reset(state)) < 0) {
 		dprintk(verbose, DST_ERROR, 1, "RDC 8820 RESET Failed.");
 		return -1;
@@ -962,7 +962,7 @@ int dst_command(struct dst_state *state, u8 *data, u8 len)
 {
 	u8 reply;
 
-	down(&state->dst_mutex);
+	mutex_lock(&state->dst_mutex);
 	if ((dst_comm_init(state)) < 0) {
 		dprintk(verbose, DST_NOTICE, 1, "DST Communication Initialization Failed.");
 		goto error;
@@ -1013,11 +1013,11 @@ int dst_command(struct dst_state *state, u8 *data, u8 len)
 		dprintk(verbose, DST_INFO, 1, "checksum failure");
 		goto error;
 	}
-	up(&state->dst_mutex);
+	mutex_unlock(&state->dst_mutex);
 	return 0;
 
 error:
-	up(&state->dst_mutex);
+	mutex_unlock(&state->dst_mutex);
 	return -EIO;
 
 }
@@ -1128,7 +1128,7 @@ static int dst_write_tuna(struct dvb_frontend *fe)
 			dst_set_voltage(fe, SEC_VOLTAGE_13);
 	}
 	state->diseq_flags &= ~(HAS_LOCK | ATTEMPT_TUNE);
-	down(&state->dst_mutex);
+	mutex_lock(&state->dst_mutex);
 	if ((dst_comm_init(state)) < 0) {
 		dprintk(verbose, DST_DEBUG, 1, "DST Communication initialization failed.");
 		goto error;
@@ -1160,11 +1160,11 @@ static int dst_write_tuna(struct dvb_frontend *fe)
 	state->diseq_flags |= ATTEMPT_TUNE;
 	retval = dst_get_tuna(state);
 werr:
-	up(&state->dst_mutex);
+	mutex_unlock(&state->dst_mutex);
 	return retval;
 
 error:
-	up(&state->dst_mutex);
+	mutex_unlock(&state->dst_mutex);
 	return -EIO;
 }
 
diff --git a/drivers/media/dvb/bt8xx/dst_ca.c b/drivers/media/dvb/bt8xx/dst_ca.c
index c650b4bf7f5..f6b49a801eb 100644
--- a/drivers/media/dvb/bt8xx/dst_ca.c
+++ b/drivers/media/dvb/bt8xx/dst_ca.c
@@ -81,7 +81,7 @@ static int dst_ci_command(struct dst_state* state, u8 * data, u8 *ca_string, u8
 {
 	u8 reply;
 
-	down(&state->dst_mutex);
+	mutex_lock(&state->dst_mutex);
 	dst_comm_init(state);
 	msleep(65);
 
@@ -110,11 +110,11 @@ static int dst_ci_command(struct dst_state* state, u8 * data, u8 *ca_string, u8
 			goto error;
 		}
 	}
-	up(&state->dst_mutex);
+	mutex_unlock(&state->dst_mutex);
 	return 0;
 
 error:
-	up(&state->dst_mutex);
+	mutex_unlock(&state->dst_mutex);
 	return -EIO;
 }
 
diff --git a/drivers/media/dvb/bt8xx/dst_common.h b/drivers/media/dvb/bt8xx/dst_common.h
index 81557f38fe3..51d4e043716 100644
--- a/drivers/media/dvb/bt8xx/dst_common.h
+++ b/drivers/media/dvb/bt8xx/dst_common.h
@@ -25,6 +25,7 @@
 #include <linux/smp_lock.h>
 #include <linux/dvb/frontend.h>
 #include <linux/device.h>
+#include <linux/mutex.h>
 #include "bt878.h"
 
 #include "dst_ca.h"
@@ -121,7 +122,7 @@ struct dst_state {
 	u8 vendor[8];
 	u8 board_info[8];
 
-	struct semaphore dst_mutex;
+	struct mutex dst_mutex;
 };
 
 struct dst_types {
diff --git a/drivers/media/dvb/bt8xx/dvb-bt8xx.c b/drivers/media/dvb/bt8xx/dvb-bt8xx.c
index ea27b15007e..1649846f9ce 100644
--- a/drivers/media/dvb/bt8xx/dvb-bt8xx.c
+++ b/drivers/media/dvb/bt8xx/dvb-bt8xx.c
@@ -76,13 +76,13 @@ static int dvb_bt8xx_start_feed(struct dvb_demux_feed *dvbdmxfeed)
 	if (!dvbdmx->dmx.frontend)
 		return -EINVAL;
 
-	down(&card->lock);
+	mutex_lock(&card->lock);
 	card->nfeeds++;
 	rc = card->nfeeds;
 	if (card->nfeeds == 1)
 		bt878_start(card->bt, card->gpio_mode,
 			    card->op_sync_orin, card->irq_err_ignore);
-	up(&card->lock);
+	mutex_unlock(&card->lock);
 	return rc;
 }
 
@@ -96,11 +96,11 @@ static int dvb_bt8xx_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
 	if (!dvbdmx->dmx.frontend)
 		return -EINVAL;
 
-	down(&card->lock);
+	mutex_lock(&card->lock);
 	card->nfeeds--;
 	if (card->nfeeds == 0)
 		bt878_stop(card->bt);
-	up(&card->lock);
+	mutex_unlock(&card->lock);
 
 	return 0;
 }
@@ -788,7 +788,7 @@ static int dvb_bt8xx_probe(struct bttv_sub_device *sub)
 	if (!(card = kzalloc(sizeof(struct dvb_bt8xx_card), GFP_KERNEL)))
 		return -ENOMEM;
 
-	init_MUTEX(&card->lock);
+	mutex_init(&card->lock);
 	card->bttv_nr = sub->core->nr;
 	strncpy(card->card_name, sub->core->name, sizeof(sub->core->name));
 	card->i2c_adapter = &sub->core->i2c_adap;
@@ -881,7 +881,7 @@ static int dvb_bt8xx_probe(struct bttv_sub_device *sub)
 		return -EFAULT;
 	}
 
-	init_MUTEX(&card->bt->gpio_lock);
+	mutex_init(&card->bt->gpio_lock);
 	card->bt->bttv_nr = sub->core->nr;
 
 	if ( (ret = dvb_bt8xx_load_card(card, sub->core->type)) ) {
diff --git a/drivers/media/dvb/bt8xx/dvb-bt8xx.h b/drivers/media/dvb/bt8xx/dvb-bt8xx.h
index cf035a80361..00dd9fa54c8 100644
--- a/drivers/media/dvb/bt8xx/dvb-bt8xx.h
+++ b/drivers/media/dvb/bt8xx/dvb-bt8xx.h
@@ -26,6 +26,7 @@
 #define DVB_BT8XX_H
 
 #include <linux/i2c.h>
+#include <linux/mutex.h>
 #include "dvbdev.h"
 #include "dvb_net.h"
 #include "bttv.h"
@@ -38,7 +39,7 @@
 #include "lgdt330x.h"
 
 struct dvb_bt8xx_card {
-	struct semaphore lock;
+	struct mutex lock;
 	int nfeeds;
 	char card_name[32];
 	struct dvb_adapter dvb_adapter;
diff --git a/drivers/media/dvb/cinergyT2/cinergyT2.c b/drivers/media/dvb/cinergyT2/cinergyT2.c
index c4b4c5b6b7c..29b7be5271d 100644
--- a/drivers/media/dvb/cinergyT2/cinergyT2.c
+++ b/drivers/media/dvb/cinergyT2/cinergyT2.c
@@ -30,6 +30,7 @@
 #include <linux/pci.h>
 #include <linux/input.h>
 #include <linux/dvb/frontend.h>
+#include <linux/mutex.h>
 
 #include "dmxdev.h"
 #include "dvb_demux.h"
@@ -116,7 +117,7 @@ static struct dvb_frontend_info cinergyt2_fe_info = {
 struct cinergyt2 {
 	struct dvb_demux demux;
 	struct usb_device *udev;
-	struct semaphore sem;
+	struct mutex sem;
 	struct dvb_adapter adapter;
 	struct dvb_device *fedev;
 	struct dmxdev dmxdev;
@@ -345,14 +346,14 @@ static int cinergyt2_start_feed(struct dvb_demux_feed *dvbdmxfeed)
 	struct dvb_demux *demux = dvbdmxfeed->demux;
 	struct cinergyt2 *cinergyt2 = demux->priv;
 
-	if (cinergyt2->disconnect_pending || down_interruptible(&cinergyt2->sem))
+	if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
 		return -ERESTARTSYS;
 
 	if (cinergyt2->streaming == 0)
 		cinergyt2_start_stream_xfer(cinergyt2);
 
 	cinergyt2->streaming++;
-	up(&cinergyt2->sem);
+	mutex_unlock(&cinergyt2->sem);
 	return 0;
 }
 
@@ -361,13 +362,13 @@ static int cinergyt2_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
 	struct dvb_demux *demux = dvbdmxfeed->demux;
 	struct cinergyt2 *cinergyt2 = demux->priv;
 
-	if (cinergyt2->disconnect_pending || down_interruptible(&cinergyt2->sem))
+	if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
 		return -ERESTARTSYS;
 
 	if (--cinergyt2->streaming == 0)
 		cinergyt2_stop_stream_xfer(cinergyt2);
 
-	up(&cinergyt2->sem);
+	mutex_unlock(&cinergyt2->sem);
 	return 0;
 }
 
@@ -483,11 +484,11 @@ static int cinergyt2_open (struct inode *inode, struct file *file)
 	struct cinergyt2 *cinergyt2 = dvbdev->priv;
 	int err = -ERESTARTSYS;
 
-	if (cinergyt2->disconnect_pending || down_interruptible(&cinergyt2->sem))
+	if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
 		return -ERESTARTSYS;
 
 	if ((err = dvb_generic_open(inode, file))) {
-		up(&cinergyt2->sem);
+		mutex_unlock(&cinergyt2->sem);
 		return err;
 	}
 
@@ -499,7 +500,7 @@ static int cinergyt2_open (struct inode *inode, struct file *file)
 
 	atomic_inc(&cinergyt2->inuse);
 
-	up(&cinergyt2->sem);
+	mutex_unlock(&cinergyt2->sem);
 	return 0;
 }
 
@@ -517,7 +518,7 @@ static int cinergyt2_release (struct inode *inode, struct file *file)
 	struct dvb_device *dvbdev = file->private_data;
 	struct cinergyt2 *cinergyt2 = dvbdev->priv;
 
-	if (down_interruptible(&cinergyt2->sem))
+	if (mutex_lock_interruptible(&cinergyt2->sem))
 		return -ERESTARTSYS;
 
 	if (!cinergyt2->disconnect_pending && (file->f_flags & O_ACCMODE) != O_RDONLY) {
@@ -526,7 +527,7 @@ static int cinergyt2_release (struct inode *inode, struct file *file)
 		cinergyt2_sleep(cinergyt2, 1);
 	}
 
-	up(&cinergyt2->sem);
+	mutex_unlock(&cinergyt2->sem);
 
 	if (atomic_dec_and_test(&cinergyt2->inuse) && cinergyt2->disconnect_pending) {
 		warn("delayed unregister in release");
@@ -541,12 +542,12 @@ static unsigned int cinergyt2_poll (struct file *file, struct poll_table_struct
 	struct dvb_device *dvbdev = file->private_data;
 	struct cinergyt2 *cinergyt2 = dvbdev->priv;
 
-	if (cinergyt2->disconnect_pending || down_interruptible(&cinergyt2->sem))
+	if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
 		return -ERESTARTSYS;
 
 	poll_wait(file, &cinergyt2->poll_wq, wait);
 
-	up(&cinergyt2->sem);
+	mutex_unlock(&cinergyt2->sem);
 
 	return (POLLIN | POLLRDNORM | POLLPRI);
 }
@@ -613,7 +614,7 @@ static int cinergyt2_ioctl (struct inode *inode, struct file *file,
 		if (copy_from_user(&p, (void  __user*) arg, sizeof(p)))
 			return -EFAULT;
 
-		if (cinergyt2->disconnect_pending || down_interruptible(&cinergyt2->sem))
+		if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
 			return -ERESTARTSYS;
 
 		param->cmd = CINERGYT2_EP1_SET_TUNER_PARAMETERS;
@@ -629,7 +630,7 @@ static int cinergyt2_ioctl (struct inode *inode, struct file *file,
 					(char *) param, sizeof(*param),
 					NULL, 0);
 
-		up(&cinergyt2->sem);
+		mutex_unlock(&cinergyt2->sem);
 
 		return (err < 0) ? err : 0;
 	}
@@ -724,7 +725,7 @@ static void cinergyt2_query_rc (void *data)
 	struct cinergyt2_rc_event rc_events[12];
 	int n, len, i;
 
-	if (cinergyt2->disconnect_pending || down_interruptible(&cinergyt2->sem))
+	if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
 		return;
 
 	len = cinergyt2_command(cinergyt2, buf, sizeof(buf),
@@ -784,7 +785,7 @@ out:
 	schedule_delayed_work(&cinergyt2->rc_query_work,
 			      msecs_to_jiffies(RC_QUERY_INTERVAL));
 
-	up(&cinergyt2->sem);
+	mutex_unlock(&cinergyt2->sem);
 }
 
 static int cinergyt2_register_rc(struct cinergyt2 *cinergyt2)
@@ -849,7 +850,7 @@ static void cinergyt2_query (void *data)
 	uint8_t lock_bits;
 	uint32_t unc;
 
-	if (cinergyt2->disconnect_pending || down_interruptible(&cinergyt2->sem))
+	if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
 		return;
 
 	unc = s->uncorrected_block_count;
@@ -868,7 +869,7 @@ static void cinergyt2_query (void *data)
 	schedule_delayed_work(&cinergyt2->query_work,
 			      msecs_to_jiffies(QUERY_INTERVAL));
 
-	up(&cinergyt2->sem);
+	mutex_unlock(&cinergyt2->sem);
 }
 
 static int cinergyt2_probe (struct usb_interface *intf,
@@ -885,7 +886,7 @@ static int cinergyt2_probe (struct usb_interface *intf,
 	memset (cinergyt2, 0, sizeof (struct cinergyt2));
 	usb_set_intfdata (intf, (void *) cinergyt2);
 
-	init_MUTEX(&cinergyt2->sem);
+	mutex_init(&cinergyt2->sem);
 	init_waitqueue_head (&cinergyt2->poll_wq);
 	INIT_WORK(&cinergyt2->query_work, cinergyt2_query, cinergyt2);
 
@@ -967,7 +968,7 @@ static int cinergyt2_suspend (struct usb_interface *intf, pm_message_t state)
 {
 	struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
 
-	if (cinergyt2->disconnect_pending || down_interruptible(&cinergyt2->sem))
+	if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
 		return -ERESTARTSYS;
 
 	if (state.event > PM_EVENT_ON) {
@@ -981,7 +982,7 @@ static int cinergyt2_suspend (struct usb_interface *intf, pm_message_t state)
 		cinergyt2_sleep(cinergyt2, 1);
 	}
 
-	up(&cinergyt2->sem);
+	mutex_unlock(&cinergyt2->sem);
 	return 0;
 }
 
@@ -990,7 +991,7 @@ static int cinergyt2_resume (struct usb_interface *intf)
 	struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
 	struct dvbt_set_parameters_msg *param = &cinergyt2->param;
 
-	if (cinergyt2->disconnect_pending || down_interruptible(&cinergyt2->sem))
+	if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
 		return -ERESTARTSYS;
 
 	if (!cinergyt2->sleeping) {
@@ -1003,7 +1004,7 @@ static int cinergyt2_resume (struct usb_interface *intf)
 
 	cinergyt2_resume_rc(cinergyt2);
 
-	up(&cinergyt2->sem);
+	mutex_unlock(&cinergyt2->sem);
 	return 0;
 }
 
diff --git a/drivers/media/dvb/dvb-core/dmxdev.c b/drivers/media/dvb/dvb-core/dmxdev.c
index 7b8373ad121..ead5343d770 100644
--- a/drivers/media/dvb/dvb-core/dmxdev.c
+++ b/drivers/media/dvb/dvb-core/dmxdev.c
@@ -175,12 +175,12 @@ static int dvb_dvr_open(struct inode *inode, struct file *file)
 
 	dprintk ("function : %s\n", __FUNCTION__);
 
-	if (down_interruptible (&dmxdev->mutex))
+	if (mutex_lock_interruptible(&dmxdev->mutex))
 		return -ERESTARTSYS;
 
 	if ((file->f_flags&O_ACCMODE)==O_RDWR) {
 		if (!(dmxdev->capabilities&DMXDEV_CAP_DUPLEX)) {
-			up(&dmxdev->mutex);
+			mutex_unlock(&dmxdev->mutex);
 			return -EOPNOTSUPP;
 		}
 	}
@@ -190,7 +190,7 @@ static int dvb_dvr_open(struct inode *inode, struct file *file)
 	      dmxdev->dvr_buffer.size=DVR_BUFFER_SIZE;
 	      dmxdev->dvr_buffer.data=vmalloc(DVR_BUFFER_SIZE);
 	      if (!dmxdev->dvr_buffer.data) {
-		      up(&dmxdev->mutex);
+		      mutex_unlock(&dmxdev->mutex);
 		      return -ENOMEM;
 	      }
 	}
@@ -199,20 +199,20 @@ static int dvb_dvr_open(struct inode *inode, struct file *file)
 		dmxdev->dvr_orig_fe=dmxdev->demux->frontend;
 
 		if (!dmxdev->demux->write) {
-			up(&dmxdev->mutex);
+			mutex_unlock(&dmxdev->mutex);
 			return -EOPNOTSUPP;
 		}
 
 		front=get_fe(dmxdev->demux, DMX_MEMORY_FE);
 
 		if (!front) {
-			up(&dmxdev->mutex);
+			mutex_unlock(&dmxdev->mutex);
 			return -EINVAL;
 		}
 		dmxdev->demux->disconnect_frontend(dmxdev->demux);
 		dmxdev->demux->connect_frontend(dmxdev->demux, front);
 	}
-	up(&dmxdev->mutex);
+	mutex_unlock(&dmxdev->mutex);
 	return 0;
 }
 
@@ -221,7 +221,7 @@ static int dvb_dvr_release(struct inode *inode, struct file *file)
 	struct dvb_device *dvbdev = file->private_data;
 	struct dmxdev *dmxdev = dvbdev->priv;
 
-	if (down_interruptible (&dmxdev->mutex))
+	if (mutex_lock_interruptible(&dmxdev->mutex))
 		return -ERESTARTSYS;
 
 	if ((file->f_flags&O_ACCMODE)==O_WRONLY) {
@@ -239,7 +239,7 @@ static int dvb_dvr_release(struct inode *inode, struct file *file)
 			vfree(mem);
 		}
 	}
-	up(&dmxdev->mutex);
+	mutex_unlock(&dmxdev->mutex);
 	return 0;
 }
 
@@ -254,10 +254,10 @@ static ssize_t dvb_dvr_write(struct file *file, const char __user *buf,
 		return -EOPNOTSUPP;
 	if ((file->f_flags&O_ACCMODE)!=O_WRONLY)
 		return -EINVAL;
-	if (down_interruptible (&dmxdev->mutex))
+	if (mutex_lock_interruptible(&dmxdev->mutex))
 		return -ERESTARTSYS;
 	ret=dmxdev->demux->write(dmxdev->demux, buf, count);
-	up(&dmxdev->mutex);
+	mutex_unlock(&dmxdev->mutex);
 	return ret;
 }
 
@@ -268,11 +268,11 @@ static ssize_t dvb_dvr_read(struct file *file, char __user *buf, size_t count,
 	struct dmxdev *dmxdev = dvbdev->priv;
 	int ret;
 
-	//down(&dmxdev->mutex);
+	//mutex_lock(&dmxdev->mutex);
 	ret= dvb_dmxdev_buffer_read(&dmxdev->dvr_buffer,
 			      file->f_flags&O_NONBLOCK,
 			      buf, count, ppos);
-	//up(&dmxdev->mutex);
+	//mutex_unlock(&dmxdev->mutex);
 	return ret;
 }
 
@@ -688,7 +688,7 @@ static int dvb_demux_open(struct inode *inode, struct file *file)
 	if (!dmxdev->filter)
 		return -EINVAL;
 
-	if (down_interruptible(&dmxdev->mutex))
+	if (mutex_lock_interruptible(&dmxdev->mutex))
 		return -ERESTARTSYS;
 
 	for (i=0; i<dmxdev->filternum; i++)
@@ -696,12 +696,12 @@ static int dvb_demux_open(struct inode *inode, struct file *file)
 			break;
 
 	if (i==dmxdev->filternum) {
-		up(&dmxdev->mutex);
+		mutex_unlock(&dmxdev->mutex);
 		return -EMFILE;
 	}
 
 	dmxdevfilter=&dmxdev->filter[i];
-	sema_init(&dmxdevfilter->mutex, 1);
+	mutex_init(&dmxdevfilter->mutex);
 	dmxdevfilter->dvbdev=dmxdev->dvbdev;
 	file->private_data=dmxdevfilter;
 
@@ -711,18 +711,18 @@ static int dvb_demux_open(struct inode *inode, struct file *file)
 	dmxdevfilter->feed.ts=NULL;
 	init_timer(&dmxdevfilter->timer);
 
-	up(&dmxdev->mutex);
+	mutex_unlock(&dmxdev->mutex);
 	return 0;
 }
 
 
 static int dvb_dmxdev_filter_free(struct dmxdev *dmxdev, struct dmxdev_filter *dmxdevfilter)
 {
-	if (down_interruptible(&dmxdev->mutex))
+	if (mutex_lock_interruptible(&dmxdev->mutex))
 		return -ERESTARTSYS;
 
-	if (down_interruptible(&dmxdevfilter->mutex)) {
-		up(&dmxdev->mutex);
+	if (mutex_lock_interruptible(&dmxdevfilter->mutex)) {
+		mutex_unlock(&dmxdev->mutex);
 		return -ERESTARTSYS;
 	}
 
@@ -740,8 +740,8 @@ static int dvb_dmxdev_filter_free(struct dmxdev *dmxdev, struct dmxdev_filter *d
 
 	dvb_dmxdev_filter_state_set(dmxdevfilter, DMXDEV_STATE_FREE);
 	wake_up(&dmxdevfilter->buffer.queue);
-	up(&dmxdevfilter->mutex);
-	up(&dmxdev->mutex);
+	mutex_unlock(&dmxdevfilter->mutex);
+	mutex_unlock(&dmxdev->mutex);
 	return 0;
 }
 
@@ -841,7 +841,7 @@ dvb_demux_read(struct file *file, char __user *buf, size_t count, loff_t *ppos)
 	struct dmxdev_filter *dmxdevfilter= file->private_data;
 	int ret=0;
 
-	if (down_interruptible(&dmxdevfilter->mutex))
+	if (mutex_lock_interruptible(&dmxdevfilter->mutex))
 		return -ERESTARTSYS;
 
 	if (dmxdevfilter->type==DMXDEV_TYPE_SEC)
@@ -851,7 +851,7 @@ dvb_demux_read(struct file *file, char __user *buf, size_t count, loff_t *ppos)
 				     file->f_flags&O_NONBLOCK,
 				     buf, count, ppos);
 
-	up(&dmxdevfilter->mutex);
+	mutex_unlock(&dmxdevfilter->mutex);
 	return ret;
 }
 
@@ -864,58 +864,58 @@ static int dvb_demux_do_ioctl(struct inode *inode, struct file *file,
 	unsigned long arg=(unsigned long) parg;
 	int ret=0;
 
-	if (down_interruptible (&dmxdev->mutex))
+	if (mutex_lock_interruptible(&dmxdev->mutex))
 		return -ERESTARTSYS;
 
 	switch (cmd) {
 	case DMX_START:
-		if (down_interruptible(&dmxdevfilter->mutex)) {
-			up(&dmxdev->mutex);
+		if (mutex_lock_interruptible(&dmxdevfilter->mutex)) {
+			mutex_unlock(&dmxdev->mutex);
 			return -ERESTARTSYS;
 		}
 		if (dmxdevfilter->state<DMXDEV_STATE_SET)
 			ret = -EINVAL;
 		else
 			ret = dvb_dmxdev_filter_start(dmxdevfilter);
-		up(&dmxdevfilter->mutex);
+		mutex_unlock(&dmxdevfilter->mutex);
 		break;
 
 	case DMX_STOP:
-		if (down_interruptible(&dmxdevfilter->mutex)) {
-			up(&dmxdev->mutex);
+		if (mutex_lock_interruptible(&dmxdevfilter->mutex)) {
+			mutex_unlock(&dmxdev->mutex);
 			return -ERESTARTSYS;
 		}
 		ret=dvb_dmxdev_filter_stop(dmxdevfilter);
-		up(&dmxdevfilter->mutex);
+		mutex_unlock(&dmxdevfilter->mutex);
 		break;
 
 	case DMX_SET_FILTER:
-		if (down_interruptible(&dmxdevfilter->mutex)) {
-			up(&dmxdev->mutex);
+		if (mutex_lock_interruptible(&dmxdevfilter->mutex)) {
+			mutex_unlock(&dmxdev->mutex);
 			return -ERESTARTSYS;
 		}
 		ret = dvb_dmxdev_filter_set(dmxdev, dmxdevfilter,
 				    (struct dmx_sct_filter_params *)parg);
-		up(&dmxdevfilter->mutex);
+		mutex_unlock(&dmxdevfilter->mutex);
 		break;
 
 	case DMX_SET_PES_FILTER:
-		if (down_interruptible(&dmxdevfilter->mutex)) {
-			up(&dmxdev->mutex);
+		if (mutex_lock_interruptible(&dmxdevfilter->mutex)) {
+			mutex_unlock(&dmxdev->mutex);
 			return -ERESTARTSYS;
 		}
 		ret=dvb_dmxdev_pes_filter_set(dmxdev, dmxdevfilter,
 					       (struct dmx_pes_filter_params *)parg);
-		up(&dmxdevfilter->mutex);
+		mutex_unlock(&dmxdevfilter->mutex);
 		break;
 
 	case DMX_SET_BUFFER_SIZE:
-		if (down_interruptible(&dmxdevfilter->mutex)) {
-			up(&dmxdev->mutex);
+		if (mutex_lock_interruptible(&dmxdevfilter->mutex)) {
+			mutex_unlock(&dmxdev->mutex);
 			return -ERESTARTSYS;
 		}
 		ret=dvb_dmxdev_set_buffer_size(dmxdevfilter, arg);
-		up(&dmxdevfilter->mutex);
+		mutex_unlock(&dmxdevfilter->mutex);
 		break;
 
 	case DMX_GET_EVENT:
@@ -959,7 +959,7 @@ static int dvb_demux_do_ioctl(struct inode *inode, struct file *file,
 	default:
 		ret=-EINVAL;
 	}
-	up(&dmxdev->mutex);
+	mutex_unlock(&dmxdev->mutex);
 	return ret;
 }
 
@@ -1030,7 +1030,7 @@ static int dvb_dvr_do_ioctl(struct inode *inode, struct file *file,
 
 	int ret=0;
 
-	if (down_interruptible (&dmxdev->mutex))
+	if (mutex_lock_interruptible(&dmxdev->mutex))
 		return -ERESTARTSYS;
 
 	switch (cmd) {
@@ -1042,7 +1042,7 @@ static int dvb_dvr_do_ioctl(struct inode *inode, struct file *file,
 	default:
 		ret=-EINVAL;
 	}
-	up(&dmxdev->mutex);
+	mutex_unlock(&dmxdev->mutex);
 	return ret;
 }
 
@@ -1113,7 +1113,7 @@ dvb_dmxdev_init(struct dmxdev *dmxdev, struct dvb_adapter *dvb_adapter)
 		return -ENOMEM;
 	}
 
-	sema_init(&dmxdev->mutex, 1);
+	mutex_init(&dmxdev->mutex);
 	spin_lock_init(&dmxdev->lock);
 	for (i=0; i<dmxdev->filternum; i++) {
 		dmxdev->filter[i].dev=dmxdev;
diff --git a/drivers/media/dvb/dvb-core/dmxdev.h b/drivers/media/dvb/dvb-core/dmxdev.h
index fd72920c219..ec2a7a4da5e 100644
--- a/drivers/media/dvb/dvb-core/dmxdev.h
+++ b/drivers/media/dvb/dvb-core/dmxdev.h
@@ -30,7 +30,7 @@
 #include <linux/wait.h>
 #include <linux/fs.h>
 #include <linux/string.h>
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
 
 #include <linux/dvb/dmx.h>
 
@@ -83,7 +83,7 @@ struct dmxdev_filter {
 	struct dmxdev *dev;
 	struct dmxdev_buffer buffer;
 
-	struct semaph