forked from Minki/linux
V4L/DVB (6812): media: video: usbvision: remove ctrlUrbLock
The ctrlUrbLock has all it's users commented out, and so it's unused. This patch removes it. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Thierry MERLE <thierry.merle@free.fr> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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544e617533
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@ -1561,13 +1561,10 @@ static int usbvision_write_reg_irq(struct usb_usbvision *usbvision,int address,
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if (len > 8) {
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return -EFAULT;
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}
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// down(&usbvision->ctrlUrbLock);
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if (usbvision->ctrlUrbBusy) {
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// up(&usbvision->ctrlUrbLock);
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return -EBUSY;
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}
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usbvision->ctrlUrbBusy = 1;
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// up(&usbvision->ctrlUrbLock);
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usbvision->ctrlUrbSetup.bRequestType = USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT;
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usbvision->ctrlUrbSetup.bRequest = USBVISION_OP_CODE;
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@ -1651,7 +1651,6 @@ static struct usb_usbvision *usbvision_alloc(struct usb_device *dev)
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goto err_exit;
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}
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init_waitqueue_head(&usbvision->ctrlUrb_wq);
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init_MUTEX(&usbvision->ctrlUrbLock); /* to 1 == available */
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usbvision_init_powerOffTimer(usbvision);
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@ -370,7 +370,6 @@ struct usb_usbvision {
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int ctrlUrbBusy;
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struct usb_ctrlrequest ctrlUrbSetup;
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wait_queue_head_t ctrlUrb_wq; // Processes waiting
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struct semaphore ctrlUrbLock;
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/* configuration part */
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int have_tuner;
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