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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-08-18 20:33:01 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-08-18 20:33:01 -0700
commitbd479f293370d863953aba59130bcc7ae867dd10 (patch)
treeb6987c9c622d1f98b680d6fce1447972d717761c /drivers/usb/host/ehci-sched.c
parent68c91d377c9bd14cbe35c647ed3b847f7862c958 (diff)
parentb36f4be3de1b123d8601de062e7dbfc904f305fb (diff)
downloadlinux-stericsson-bd479f293370d863953aba59130bcc7ae867dd10.tar.gz
Merge 3.11-rc6 into usb-next
We want these USB fixes in this branch as well. 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.c13
1 files changed, 6 insertions, 7 deletions
diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c
index 94388738a6f7..66310894ad97 100644
--- a/drivers/usb/host/ehci-sched.c
+++ b/drivers/usb/host/ehci-sched.c
@@ -1434,21 +1434,20 @@ iso_stream_schedule (
/* Behind the scheduling threshold? */
if (unlikely(start < next)) {
+ unsigned now2 = (now - base) & (mod - 1);
/* USB_ISO_ASAP: Round up to the first available slot */
if (urb->transfer_flags & URB_ISO_ASAP)
start += (next - start + period - 1) & -period;
/*
- * Not ASAP: Use the next slot in the stream. If
- * the entire URB falls before the threshold, fail.
+ * Not ASAP: Use the next slot in the stream,
+ * no matter what.
*/
- else if (start + span - period < next) {
- ehci_dbg(ehci, "iso urb late %p (%u+%u < %u)\n",
+ else if (start + span - period < now2) {
+ ehci_dbg(ehci, "iso underrun %p (%u+%u < %u)\n",
urb, start + base,
- span - period, next + base);
- status = -EXDEV;
- goto fail;
+ span - period, now2 + base);
}
}