usb: misc: usbtest: usbtest_do_ioctl may return positive integer
authorPeter Chen <peter.chen@nxp.com>
Tue, 26 Jul 2016 08:01:30 +0000 (16:01 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 9 Aug 2016 13:45:59 +0000 (15:45 +0200)
commit28324936f3d672bbf83472fece8f36a158a52276
treefb4650bc15f517082026a76b4968f1042dbbdb04
parent07d316a22e119fa301fd7dba7f1e1adfd4f72c05
usb: misc: usbtest: usbtest_do_ioctl may return positive integer

For case 14 and case 21, their correct return value is the number
of bytes transferred, so it is a positive integer. But in usbtest_ioctl,
it takes non-zero as false return value for usbtest_do_ioctl, so
it will treat the correct test as wrong test, then the time on
tests will be the minus value.

Signed-off-by: Peter Chen <peter.chen@nxp.com>
Cc: stable <stable@vger.kernel.org>
Fixes: 18fc4ebdc705 ("usb: misc: usbtest: Remove timeval usage")
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/misc/usbtest.c