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usb: class: cdc-acm: be careful with bInterval

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bInterval must be on the range 1 - 16, if we
want to pass the maximum allowed, we should
be passing 16

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Felipe Balbi 2013-07-01 11:23:24 +03:00 committed by Greg Kroah-Hartman
parent 5447e0a652
commit d102e78f70
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/class/cdc-acm.c
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@ -1295,7 +1295,7 @@ static int acm_probe(struct usb_interface *intf,
usb_rcvintpipe(usb_dev, epctrl->bEndpointAddress),
acm->ctrl_buffer, ctrlsize, acm_ctrl_irq, acm,
/* works around buggy devices */
epctrl->bInterval ? epctrl->bInterval : 0xff);
epctrl->bInterval ? epctrl->bInterval : 16);
acm->ctrlurb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
acm->ctrlurb->transfer_dma = acm->ctrl_dma;