From 077f5f1c23b3cf1134c031677497dfb6077e6bdd Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Wed, 29 May 2013 11:33:52 -0400 Subject: [PATCH] USB: EHCI: fix regression related to qh_refresh() This patch adds some code that inadvertently got left out of commit c1fdb68e3d73741630ca16695cf9176c233be7ed (USB: EHCI: changes related to qh_refresh()). The calls to qh_refresh() and qh_link_periodic() were taken out of qh_schedule(); therefore it is necessary to call these routines manually after calling qh_schedule(). Signed-off-by: Alan Stern Reported-and-tested-by: Oleksij Rempel Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/ehci-sched.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c index f3c1028a54fc..f80d0330d548 100644 --- a/drivers/usb/host/ehci-sched.c +++ b/drivers/usb/host/ehci-sched.c @@ -646,6 +646,10 @@ static void end_unlink_intr(struct ehci_hcd *ehci, struct ehci_qh *qh) /* reschedule QH iff another request is queued */ if (!list_empty(&qh->qtd_list) && ehci->rh_state == EHCI_RH_RUNNING) { rc = qh_schedule(ehci, qh); + if (rc == 0) { + qh_refresh(ehci, qh); + qh_link_periodic(ehci, qh); + } /* An error here likely indicates handshake failure * or no space left in the schedule. Neither fault @@ -653,9 +657,10 @@ static void end_unlink_intr(struct ehci_hcd *ehci, struct ehci_qh *qh) * * FIXME kill the now-dysfunctional queued urbs */ - if (rc != 0) + else { ehci_err(ehci, "can't reschedule qh %p, err %d\n", qh, rc); + } } /* maybe turn off periodic schedule */ -- 2.20.1