From: Ezequiel García <elezegarcia@gmail.com>
Date: Sat, 5 May 2012 15:17:33 +0000 (-0300)
Subject: [media] em28xx: Remove unused wait_queue's
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=d2b30e9068577e15e432974ddf0862315ec2069c;p=openwrt%2Fstaging%2Fblogic.git

[media] em28xx: Remove unused wait_queue's

Nobody ever waits on any of these wait_queue's,
so this patch removes them completely.
Tested by compilation only.

Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---

diff --git a/drivers/media/video/em28xx/em28xx-cards.c b/drivers/media/video/em28xx/em28xx-cards.c
index fcc713f8098d..20a7e24de6fb 100644
--- a/drivers/media/video/em28xx/em28xx-cards.c
+++ b/drivers/media/video/em28xx/em28xx-cards.c
@@ -2945,9 +2945,6 @@ static int em28xx_init_dev(struct em28xx *dev, struct usb_device *udev,
 	dev->udev = udev;
 	mutex_init(&dev->ctrl_urb_lock);
 	spin_lock_init(&dev->slock);
-	init_waitqueue_head(&dev->open);
-	init_waitqueue_head(&dev->wait_frame);
-	init_waitqueue_head(&dev->wait_stream);
 
 	dev->em28xx_write_regs = em28xx_write_regs;
 	dev->em28xx_read_reg = em28xx_read_reg;
@@ -3385,8 +3382,6 @@ static void em28xx_usb_disconnect(struct usb_interface *interface)
 	   resources */
 	mutex_lock(&dev->lock);
 
-	wake_up_interruptible_all(&dev->open);
-
 	v4l2_device_disconnect(&dev->v4l2_dev);
 
 	if (dev->users) {
@@ -3398,8 +3393,6 @@ static void em28xx_usb_disconnect(struct usb_interface *interface)
 		dev->state |= DEV_MISCONFIGURED;
 		em28xx_uninit_isoc(dev, dev->mode);
 		dev->state |= DEV_DISCONNECTED;
-		wake_up_interruptible(&dev->wait_frame);
-		wake_up_interruptible(&dev->wait_stream);
 	} else {
 		dev->state |= DEV_DISCONNECTED;
 		em28xx_release_resources(dev);
diff --git a/drivers/media/video/em28xx/em28xx-video.c b/drivers/media/video/em28xx/em28xx-video.c
index 308a1dd08cfb..1d4068052ef0 100644
--- a/drivers/media/video/em28xx/em28xx-video.c
+++ b/drivers/media/video/em28xx/em28xx-video.c
@@ -2284,7 +2284,6 @@ static int em28xx_v4l2_close(struct file *filp)
 	videobuf_mmap_free(&fh->vb_vbiq);
 	kfree(fh);
 	dev->users--;
-	wake_up_interruptible_nr(&dev->open, 1);
 	return 0;
 }
 
diff --git a/drivers/media/video/em28xx/em28xx.h b/drivers/media/video/em28xx/em28xx.h
index a3f77f6f5d95..8757523e6863 100644
--- a/drivers/media/video/em28xx/em28xx.h
+++ b/drivers/media/video/em28xx/em28xx.h
@@ -570,7 +570,6 @@ struct em28xx {
 	struct mutex ctrl_urb_lock;	/* protects urb_buf */
 	/* spinlock_t queue_lock; */
 	struct list_head inqueue, outqueue;
-	wait_queue_head_t open, wait_frame, wait_stream;
 	struct video_device *vbi_dev;
 	struct video_device *radio_dev;