Merge branch 'master' of ssh://master.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb

* 'master' of ssh://master.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb:
  V4L/DVB (5822): Fix the return value in ttpci_budget_init()
  V4L/DVB (5818): CinergyT2: fix flush_workqueue() vs work->func() deadlock
  V4L/DVB (5816): Cx88-blackbird: fix vidioc_g_tuner never ending list of tuners
  V4L/DVB (5808): Bttv: fix v4l1 breaking the driver

4 files changed, 49 insertions, 34 deletions

diff --git a/drivers/media/dvb/cinergyT2/cinergyT2.c b/drivers/media/dvb/cinergyT2/cinergyT2.c
index 6aba5b39ed1..b40af48a2ed 100644
--- a/drivers/media/dvb/cinergyT2/cinergyT2.c
+++ b/drivers/media/dvb/cinergyT2/cinergyT2.c
@@ -118,6 +118,7 @@ struct cinergyt2 {
 	struct dvb_demux demux;
 	struct usb_device *udev;
 	struct mutex sem;
+	struct mutex wq_sem;
 	struct dvb_adapter adapter;
 	struct dvb_device *fedev;
 	struct dmxdev dmxdev;
@@ -482,14 +483,14 @@ static int cinergyt2_open (struct inode *inode, struct file *file)
 	struct cinergyt2 *cinergyt2 = dvbdev->priv;
 	int err = -ERESTARTSYS;
 
-	if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
-		return -ERESTARTSYS;
+	if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->wq_sem))
+		goto out;
 
-	if ((err = dvb_generic_open(inode, file))) {
-		mutex_unlock(&cinergyt2->sem);
-		return err;
-	}
+	if (mutex_lock_interruptible(&cinergyt2->sem))
+		goto out_unlock1;
 
+	if ((err = dvb_generic_open(inode, file)))
+		goto out_unlock2;
 
 	if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
 		cinergyt2_sleep(cinergyt2, 0);
@@ -498,8 +499,12 @@ static int cinergyt2_open (struct inode *inode, struct file *file)
 
 	atomic_inc(&cinergyt2->inuse);
 
+out_unlock2:
 	mutex_unlock(&cinergyt2->sem);
-	return 0;
+out_unlock1:
+	mutex_unlock(&cinergyt2->wq_sem);
+out:
+	return err;
 }
 
 static void cinergyt2_unregister(struct cinergyt2 *cinergyt2)
@@ -519,15 +524,17 @@ static int cinergyt2_release (struct inode *inode, struct file *file)
 	struct dvb_device *dvbdev = file->private_data;
 	struct cinergyt2 *cinergyt2 = dvbdev->priv;
 
-	mutex_lock(&cinergyt2->sem);
+	mutex_lock(&cinergyt2->wq_sem);
 
 	if (!cinergyt2->disconnect_pending && (file->f_flags & O_ACCMODE) != O_RDONLY) {
-		cancel_delayed_work(&cinergyt2->query_work);
-		flush_scheduled_work();
+		cancel_rearming_delayed_work(&cinergyt2->query_work);
+
+		mutex_lock(&cinergyt2->sem);
 		cinergyt2_sleep(cinergyt2, 1);
+		mutex_unlock(&cinergyt2->sem);
 	}
 
-	mutex_unlock(&cinergyt2->sem);
+	mutex_unlock(&cinergyt2->wq_sem);
 
 	if (atomic_dec_and_test(&cinergyt2->inuse) && cinergyt2->disconnect_pending) {
 		warn("delayed unregister in release");
@@ -838,13 +845,13 @@ static int cinergyt2_register_rc(struct cinergyt2 *cinergyt2)
 
 static void cinergyt2_unregister_rc(struct cinergyt2 *cinergyt2)
 {
-	cancel_delayed_work(&cinergyt2->rc_query_work);
+	cancel_rearming_delayed_work(&cinergyt2->rc_query_work);
 	input_unregister_device(cinergyt2->rc_input_dev);
 }
 
 static inline void cinergyt2_suspend_rc(struct cinergyt2 *cinergyt2)
 {
-	cancel_delayed_work(&cinergyt2->rc_query_work);
+	cancel_rearming_delayed_work(&cinergyt2->rc_query_work);
 }
 
 static inline void cinergyt2_resume_rc(struct cinergyt2 *cinergyt2)
@@ -907,6 +914,7 @@ static int cinergyt2_probe (struct usb_interface *intf,
 	usb_set_intfdata (intf, (void *) cinergyt2);
 
 	mutex_init(&cinergyt2->sem);
+	mutex_init(&cinergyt2->wq_sem);
 	init_waitqueue_head (&cinergyt2->poll_wq);
 	INIT_DELAYED_WORK(&cinergyt2->query_work, cinergyt2_query);
 
@@ -974,11 +982,8 @@ static void cinergyt2_disconnect (struct usb_interface *intf)
 {
 	struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
 
-	flush_scheduled_work();
-
 	cinergyt2_unregister_rc(cinergyt2);
-
-	cancel_delayed_work(&cinergyt2->query_work);
+	cancel_rearming_delayed_work(&cinergyt2->query_work);
 	wake_up_interruptible(&cinergyt2->poll_wq);
 
 	cinergyt2->demux.dmx.close(&cinergyt2->demux.dmx);
@@ -992,21 +997,21 @@ static int cinergyt2_suspend (struct usb_interface *intf, pm_message_t state)
 {
 	struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
 
-	if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
+	if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->wq_sem))
 		return -ERESTARTSYS;
 
 	if (1) {
-		struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
-
 		cinergyt2_suspend_rc(cinergyt2);
-		cancel_delayed_work(&cinergyt2->query_work);
+		cancel_rearming_delayed_work(&cinergyt2->query_work);
+
+		mutex_lock(&cinergyt2->sem);
 		if (cinergyt2->streaming)
 			cinergyt2_stop_stream_xfer(cinergyt2);
-		flush_scheduled_work();
 		cinergyt2_sleep(cinergyt2, 1);
+		mutex_unlock(&cinergyt2->sem);
 	}
 
-	mutex_unlock(&cinergyt2->sem);
+	mutex_unlock(&cinergyt2->wq_sem);
 	return 0;
 }
 
@@ -1014,9 +1019,15 @@ static int cinergyt2_resume (struct usb_interface *intf)
 {
 	struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
 	struct dvbt_set_parameters_msg *param = &cinergyt2->param;
+	int err = -ERESTARTSYS;
 
-	if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
-		return -ERESTARTSYS;
+	if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->wq_sem))
+		goto out;
+
+	if (mutex_lock_interruptible(&cinergyt2->sem))
+		goto out_unlock1;
+
+	err = 0;
 
 	if (!cinergyt2->sleeping) {
 		cinergyt2_sleep(cinergyt2, 0);
@@ -1029,7 +1040,10 @@ static int cinergyt2_resume (struct usb_interface *intf)
 	cinergyt2_resume_rc(cinergyt2);
 
 	mutex_unlock(&cinergyt2->sem);
-	return 0;
+out_unlock1:
+	mutex_unlock(&cinergyt2->wq_sem);
+out:
+	return err;
 }
 
 static const struct usb_device_id cinergyt2_table [] __devinitdata = {
diff --git a/drivers/media/dvb/ttpci/budget-core.c b/drivers/media/dvb/ttpci/budget-core.c
index 2557ac9620d..b611f2b1f8b 100644
--- a/drivers/media/dvb/ttpci/budget-core.c
+++ b/drivers/media/dvb/ttpci/budget-core.c
@@ -529,7 +529,7 @@ int ttpci_budget_init(struct budget *budget, struct saa7146_dev *dev,
 	if (bi->type != BUDGET_FS_ACTIVY)
 		saa7146_setgpio(dev, 2, SAA7146_GPIO_OUTHI);
 
-	if (budget_register(budget) == 0)
+	if ((ret = budget_register(budget)) == 0)
 		return 0; /* Everything OK */
 
 	/* An error occurred, cleanup resources */
diff --git a/drivers/media/video/bt8xx/bttv-driver.c b/drivers/media/video/bt8xx/bttv-driver.c
index 1c38723d316..b1fedb0f643 100644
--- a/drivers/media/video/bt8xx/bttv-driver.c
+++ b/drivers/media/video/bt8xx/bttv-driver.c
@@ -1331,7 +1331,7 @@ set_tvnorm(struct bttv *btv, unsigned int norm)
 
 /* Call with btv->lock down. */
 static void
-set_input(struct bttv *btv, unsigned int input)
+set_input(struct bttv *btv, unsigned int input, unsigned int norm)
 {
 	unsigned long flags;
 
@@ -1350,7 +1350,7 @@ set_input(struct bttv *btv, unsigned int input)
 	}
 	audio_input(btv,(input == bttv_tvcards[btv->c.type].tuner ?
 		       TVAUDIO_INPUT_TUNER : TVAUDIO_INPUT_EXTERN));
-	set_tvnorm(btv,btv->tvnorm);
+	set_tvnorm(btv, norm);
 	i2c_vidiocschan(btv);
 }
 
@@ -1441,7 +1441,7 @@ static void bttv_reinit_bt848(struct bttv *btv)
 
 	init_bt848(btv);
 	btv->pll.pll_current = -1;
-	set_input(btv,btv->input);
+	set_input(btv, btv->input, btv->tvnorm);
 }
 
 static int get_control(struct bttv *btv, struct v4l2_control *c)
@@ -2011,8 +2011,7 @@ static int bttv_common_ioctls(struct bttv *btv, unsigned int cmd, void *arg)
 			return 0;
 		}
 
-		btv->tvnorm = v->norm;
-		set_input(btv,v->channel);
+		set_input(btv, v->channel, v->norm);
 		mutex_unlock(&btv->lock);
 		return 0;
 	}
@@ -2148,7 +2147,7 @@ static int bttv_common_ioctls(struct bttv *btv, unsigned int cmd, void *arg)
 		if (*i > bttv_tvcards[btv->c.type].video_inputs)
 			return -EINVAL;
 		mutex_lock(&btv->lock);
-		set_input(btv,*i);
+		set_input(btv, *i, btv->tvnorm);
 		mutex_unlock(&btv->lock);
 		return 0;
 	}
@@ -4780,7 +4779,7 @@ static int __devinit bttv_probe(struct pci_dev *dev,
 		bt848_hue(btv,32768);
 		bt848_sat(btv,32768);
 		audio_mute(btv, 1);
-		set_input(btv,0);
+		set_input(btv, 0, btv->tvnorm);
 		bttv_crop_reset(&btv->crop[0], btv->tvnorm);
 		btv->crop[1] = btv->crop[0]; /* current = default */
 		disclaim_vbi_lines(btv);
diff --git a/drivers/media/video/cx88/cx88-blackbird.c b/drivers/media/video/cx88/cx88-blackbird.c
index b0466b88f52..a80b1cb1abe 100644
--- a/drivers/media/video/cx88/cx88-blackbird.c
+++ b/drivers/media/video/cx88/cx88-blackbird.c
@@ -1034,6 +1034,8 @@ static int vidioc_g_tuner (struct file *file, void *priv,
 
 	if (unlikely(UNSET == core->tuner_type))
 		return -EINVAL;
+	if (0 != t->index)
+		return -EINVAL;
 
 	strcpy(t->name, "Television");
 	t->type       = V4L2_TUNER_ANALOG_TV;