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| author | Alan Stern <stern@rowland.harvard.edu> | 2013-05-29 11:33:52 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-05-30 21:20:04 +0900 |
| commit | 077f5f1c23b3cf1134c031677497dfb6077e6bdd (patch) | |
| tree | a3f020d8d6479280cdbfccbf931f70079e74304e /drivers/usb | |
| parent | e2e2f0ea1c935edcf53feb4c4c8fdb4f86d57dd9 (diff) | |
| download | linux-077f5f1c23b3cf1134c031677497dfb6077e6bdd.tar.gz linux-077f5f1c23b3cf1134c031677497dfb6077e6bdd.tar.bz2 linux-077f5f1c23b3cf1134c031677497dfb6077e6bdd.zip | |
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 <stern@rowland.harvard.edu>
Reported-and-tested-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/host/ehci-sched.c | 7 |
1 files changed, 6 insertions, 1 deletions
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 */ |