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usb: usbtest: add pattern check on pipe in phase of unlink read

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TEST 11 unlinks the URB read request for N times. When host and gadget
both initialize pattern 1 (mod 63) data series to do IN transfer, the
host side function should check the data buffer if it is as mod 63
series, because the data packet which host receivced will follow
pattern 1. So this patch adds this checking action.

Signed-off-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Huang Rui 2014-05-22 18:06:14 +08:00 committed by Greg Kroah-Hartman
parent e4d58f5dcb
commit a7683eb3af
1 changed files with 3 additions and 0 deletions
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3
drivers/usb/misc/usbtest.c
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@ -1345,6 +1345,9 @@ static int unlink1(struct usbtest_dev *dev, int pipe, int size, int async)
while (!completion_done(&completion)) { while (!completion_done(&completion)) {
retval = usb_unlink_urb(urb); retval = usb_unlink_urb(urb);
if (retval == 0 && usb_pipein(urb->pipe))
retval = simple_check_buf(dev, urb);
switch (retval) { switch (retval) {
case -EBUSY: case -EBUSY:
case -EIDRM: case -EIDRM: