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usb: core: allow isoc URBs for wireless devices with an interval < 6

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In usb_submit_urb, do not fail if an isoc URB for a wireless USB device
has an interval < 6.  Per WUSB spec, isoc endpoints can support values
from 1-16.  Valid values for interrupt URBs for wireless USB devices are
still 6-16.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Thomas Pugliese 2013-12-09 13:45:43 -06:00 committed by Greg Kroah-Hartman
parent 7005234c18
commit a2cd612dc9
1 changed files with 2 additions and 2 deletions
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4
drivers/usb/core/urb.c
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@ -492,9 +492,9 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags)
/* too small? */
switch (dev->speed) {
case USB_SPEED_WIRELESS:
if (urb->interval < 6)
if ((urb->interval < 6)
&& (xfertype == USB_ENDPOINT_XFER_INT))
return -EINVAL;
break;
default:
if (urb->interval <= 0)
return -EINVAL;