From: Huang Rui Date: Thu, 22 May 2014 10:06:14 +0000 (+0800) Subject: usb: usbtest: add pattern check on pipe in phase of unlink read X-Git-Tag: v3.16-rc1~30^2~34^2~38 X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=a7683eb3af6df30e3a3f3666d834e9abba8f5c22;p=~emulex%2Finfiniband.git usb: usbtest: add pattern check on pipe in phase of unlink read 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 Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c index 4ed457edde2..51a6da25677 100644 --- a/drivers/usb/misc/usbtest.c +++ b/drivers/usb/misc/usbtest.c @@ -1345,6 +1345,9 @@ static int unlink1(struct usbtest_dev *dev, int pipe, int size, int async) while (!completion_done(&completion)) { retval = usb_unlink_urb(urb); + if (retval == 0 && usb_pipein(urb->pipe)) + retval = simple_check_buf(dev, urb); + switch (retval) { case -EBUSY: case -EIDRM: