1 files changed, 31 insertions, 29 deletions

diff --git a/drivers/media/video/usbvision/usbvision-video.c b/drivers/media/video/usbvision/usbvision-video.c
index 36e689fa16c..b52b826a30b 100644
--- a/drivers/media/video/usbvision/usbvision-video.c
+++ b/drivers/media/video/usbvision/usbvision-video.c
@@ -410,7 +410,7 @@ static int usbvision_v4l2_open(struct inode *inode, struct file *file)
 
 	/* If so far no errors then we shall start the camera */
 	if (!errCode) {
-		down(&usbvision->lock);
+		mutex_lock(&usbvision->lock);
 		if (usbvision->power == 0) {
 			usbvision_power_on(usbvision);
 			usbvision_i2c_register(usbvision);
@@ -439,7 +439,7 @@ static int usbvision_v4l2_open(struct inode *inode, struct file *file)
 				usbvision->initialized = 0;
 			}
 		}
-		up(&usbvision->lock);
+		mutex_unlock(&usbvision->lock);
 	}
 
 	if (errCode) {
@@ -467,7 +467,7 @@ static int usbvision_v4l2_close(struct inode *inode, struct file *file)
 		(struct usb_usbvision *) video_get_drvdata(dev);
 
 	PDEBUG(DBG_IO, "close");
-	down(&usbvision->lock);
+	mutex_lock(&usbvision->lock);
 
 	usbvision_audio_off(usbvision);
 	usbvision_restart_isoc(usbvision);
@@ -487,7 +487,7 @@ static int usbvision_v4l2_close(struct inode *inode, struct file *file)
 		usbvision->initialized = 0;
 	}
 
-	up(&usbvision->lock);
+	mutex_unlock(&usbvision->lock);
 
 	if (usbvision->remove_pending) {
 		printk(KERN_INFO "%s: Final disconnect\n", __FUNCTION__);
@@ -647,13 +647,13 @@ static int vidioc_s_input (struct file *file, void *priv, unsigned int input)
 	if ((input >= usbvision->video_inputs) || (input < 0) )
 		return -EINVAL;
 
-	down(&usbvision->lock);
+	mutex_lock(&usbvision->lock);
 	usbvision_muxsel(usbvision, input);
 	usbvision_set_input(usbvision);
 	usbvision_set_output(usbvision,
 			     usbvision->curwidth,
 			     usbvision->curheight);
-	up(&usbvision->lock);
+	mutex_unlock(&usbvision->lock);
 	return 0;
 }
 
@@ -664,10 +664,10 @@ static int vidioc_s_std (struct file *file, void *priv, v4l2_std_id *id)
 		(struct usb_usbvision *) video_get_drvdata(dev);
 	usbvision->tvnormId=*id;
 
-	down(&usbvision->lock);
+	mutex_lock(&usbvision->lock);
 	call_i2c_clients(usbvision, VIDIOC_S_STD,
 			 &usbvision->tvnormId);
-	up(&usbvision->lock);
+	mutex_unlock(&usbvision->lock);
 	/* propagate the change to the decoder */
 	usbvision_muxsel(usbvision, usbvision->ctl_input);
 
@@ -1083,9 +1083,9 @@ static int vidioc_s_fmt_cap(struct file *file, void *priv,
 	usbvision->curFrame = NULL;
 
 	/* by now we are committed to the new data... */
-	down(&usbvision->lock);
+	mutex_lock(&usbvision->lock);
 	usbvision_set_output(usbvision, vf->fmt.pix.width, vf->fmt.pix.height);
-	up(&usbvision->lock);
+	mutex_unlock(&usbvision->lock);
 
 	return 0;
 }
@@ -1211,16 +1211,16 @@ static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma)
 
 	PDEBUG(DBG_MMAP, "mmap");
 
-	down(&usbvision->lock);
+	mutex_lock(&usbvision->lock);
 
 	if (!USBVISION_IS_OPERATIONAL(usbvision)) {
-		up(&usbvision->lock);
+		mutex_unlock(&usbvision->lock);
 		return -EFAULT;
 	}
 
 	if (!(vma->vm_flags & VM_WRITE) ||
 	    size != PAGE_ALIGN(usbvision->max_frame_size)) {
-		up(&usbvision->lock);
+		mutex_unlock(&usbvision->lock);
 		return -EINVAL;
 	}
 
@@ -1232,7 +1232,7 @@ static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma)
 	if (i == usbvision->num_frames) {
 		PDEBUG(DBG_MMAP,
 		       "mmap: user supplied mapping address is out of range");
-		up(&usbvision->lock);
+		mutex_unlock(&usbvision->lock);
 		return -EINVAL;
 	}
 
@@ -1245,7 +1245,7 @@ static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma)
 
 		if (vm_insert_page(vma, start, vmalloc_to_page(pos))) {
 			PDEBUG(DBG_MMAP, "mmap: vm_insert_page failed");
-			up(&usbvision->lock);
+			mutex_unlock(&usbvision->lock);
 			return -EAGAIN;
 		}
 		start += PAGE_SIZE;
@@ -1253,7 +1253,7 @@ static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma)
 		size -= PAGE_SIZE;
 	}
 
-	up(&usbvision->lock);
+	mutex_unlock(&usbvision->lock);
 	return 0;
 }
 
@@ -1271,7 +1271,7 @@ static int usbvision_radio_open(struct inode *inode, struct file *file)
 
 	PDEBUG(DBG_IO, "%s:", __FUNCTION__);
 
-	down(&usbvision->lock);
+	mutex_lock(&usbvision->lock);
 
 	if (usbvision->user) {
 		err("%s: Someone tried to open an already opened USBVision Radio!", __FUNCTION__);
@@ -1290,7 +1290,8 @@ static int usbvision_radio_open(struct inode *inode, struct file *file)
 		errCode = usbvision_set_alternate(usbvision);
 		if (errCode < 0) {
 			usbvision->last_error = errCode;
-			return -EBUSY;
+			errCode = -EBUSY;
+			goto out;
 		}
 
 		// If so far no errors then we shall start the radio
@@ -1307,7 +1308,8 @@ static int usbvision_radio_open(struct inode *inode, struct file *file)
 			usbvision->initialized = 0;
 		}
 	}
-	up(&usbvision->lock);
+out:
+	mutex_unlock(&usbvision->lock);
 	return errCode;
 }
 
@@ -1321,7 +1323,7 @@ static int usbvision_radio_close(struct inode *inode, struct file *file)
 
 	PDEBUG(DBG_IO, "");
 
-	down(&usbvision->lock);
+	mutex_lock(&usbvision->lock);
 
 	/* Set packet size to 0 */
 	usbvision->ifaceAlt=0;
@@ -1337,7 +1339,7 @@ static int usbvision_radio_close(struct inode *inode, struct file *file)
 		usbvision->initialized = 0;
 	}
 
-	up(&usbvision->lock);
+	mutex_unlock(&usbvision->lock);
 
 	if (usbvision->remove_pending) {
 		printk(KERN_INFO "%s: Final disconnect\n", __FUNCTION__);
@@ -1641,7 +1643,7 @@ static struct usb_usbvision *usbvision_alloc(struct usb_device *dev)
 
 	usbvision->dev = dev;
 
-	init_MUTEX(&usbvision->lock);	/* to 1 == available */
+	mutex_init(&usbvision->lock);	/* available */
 
 	// prepare control urb for control messages during interrupts
 	usbvision->ctrlUrb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL);
@@ -1649,7 +1651,6 @@ static struct usb_usbvision *usbvision_alloc(struct usb_device *dev)
 		goto err_exit;
 	}
 	init_waitqueue_head(&usbvision->ctrlUrb_wq);
-	init_MUTEX(&usbvision->ctrlUrbLock);	/* to 1 == available */
 
 	usbvision_init_powerOffTimer(usbvision);
 
@@ -1676,13 +1677,13 @@ static void usbvision_release(struct usb_usbvision *usbvision)
 {
 	PDEBUG(DBG_PROBE, "");
 
-	down(&usbvision->lock);
+	mutex_lock(&usbvision->lock);
 
 	usbvision_reset_powerOffTimer(usbvision);
 
 	usbvision->initialized = 0;
 
-	up(&usbvision->lock);
+	mutex_unlock(&usbvision->lock);
 
 	usbvision_remove_sysfs(usbvision->vdev);
 	usbvision_unregister_video(usbvision);
@@ -1796,7 +1797,7 @@ static int __devinit usbvision_probe(struct usb_interface *intf,
 	}
 	PDEBUG(DBG_PROBE, "bridgeType %d", usbvision->bridgeType);
 
-	down(&usbvision->lock);
+	mutex_lock(&usbvision->lock);
 
 	/* compute alternate max packet sizes */
 	uif = dev->actconfig->interface[0];
@@ -1807,6 +1808,7 @@ static int __devinit usbvision_probe(struct usb_interface *intf,
 					      usbvision->num_alt,GFP_KERNEL);
 	if (usbvision->alt_max_pkt_size == NULL) {
 		err("usbvision: out of memory!\n");
+		mutex_unlock(&usbvision->lock);
 		return -ENOMEM;
 	}
 
@@ -1840,7 +1842,7 @@ static int __devinit usbvision_probe(struct usb_interface *intf,
 	usbvision->streaming = Stream_Off;
 	usbvision_register_video(usbvision);
 	usbvision_configure_video(usbvision);
-	up(&usbvision->lock);
+	mutex_unlock(&usbvision->lock);
 
 
 	usb_set_intfdata (intf, usbvision);
@@ -1871,7 +1873,7 @@ static void __devexit usbvision_disconnect(struct usb_interface *intf)
 	}
 	usb_set_intfdata (intf, NULL);
 
-	down(&usbvision->lock);
+	mutex_lock(&usbvision->lock);
 
 	// At this time we ask to cancel outstanding URBs
 	usbvision_stop_isoc(usbvision);
@@ -1885,7 +1887,7 @@ static void __devexit usbvision_disconnect(struct usb_interface *intf)
 	usb_put_dev(usbvision->dev);
 	usbvision->dev = NULL;	// USB device is no more
 
-	up(&usbvision->lock);
+	mutex_unlock(&usbvision->lock);
 
 	if (usbvision->user) {
 		printk(KERN_INFO "%s: In use, disconnect pending\n",