From 32f2eac1e02c55bd0e948b28dd3bda5950f56f57 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Wed, 24 Sep 2014 14:06:03 +0200 Subject: [PATCH] usb: ehci: Do not disable an already disabled periodic schedule When periodic_schedules == 0, the schedule is disabled and there is no reason to disable it again. Signed-off-by: Hans de Goede --- drivers/usb/host/ehci-hcd.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 936d006ba4..55f4436beb 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -1249,9 +1249,11 @@ create_int_queue(struct usb_device *dev, unsigned long pipe, int queuesize, ALIGN_END_ADDR(struct qTD, result->tds, queuesize)); - if (disable_periodic(ctrl) < 0) { - debug("FATAL: periodic should never fail, but did"); - goto fail3; + if (ctrl->periodic_schedules > 0) { + if (disable_periodic(ctrl) < 0) { + debug("FATAL: periodic should never fail, but did"); + goto fail3; + } } /* hook up to periodic list */ -- 2.39.5