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authorAlan Stern <stern@rowland.harvard.edu>2013-05-29 11:33:52 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-05-30 21:20:04 +0900
commit077f5f1c23b3cf1134c031677497dfb6077e6bdd (patch)
treea3f020d8d6479280cdbfccbf931f70079e74304e /drivers/usb/host/ehci-sched.c
parente2e2f0ea1c935edcf53feb4c4c8fdb4f86d57dd9 (diff)
downloadlinux-stericsson-077f5f1c23b3cf1134c031677497dfb6077e6bdd.tar.gz
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/host/ehci-sched.c')
-rw-r--r--drivers/usb/host/ehci-sched.c7
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 */