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path: root/drivers/usb/host/ehci-sched.c
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Diffstat (limited to 'drivers/usb/host/ehci-sched.c')
-rw-r--r--drivers/usb/host/ehci-sched.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c
index e113fd73aeae..f9a332775c47 100644
--- a/drivers/usb/host/ehci-sched.c
+++ b/drivers/usb/host/ehci-sched.c
@@ -1581,6 +1581,10 @@ iso_stream_schedule (
1581 else 1581 else
1582 next = (now + 2 + 7) & ~0x07; /* full frame cache */ 1582 next = (now + 2 + 7) & ~0x07; /* full frame cache */
1583 1583
1584 /* If needed, initialize last_iso_frame so that this URB will be seen */
1585 if (ehci->isoc_count == 0)
1586 ehci->last_iso_frame = now >> 3;
1587
1584 /* 1588 /*
1585 * Use ehci->last_iso_frame as the base. There can't be any 1589 * Use ehci->last_iso_frame as the base. There can't be any
1586 * TDs scheduled for earlier than that. 1590 * TDs scheduled for earlier than that.
@@ -1600,11 +1604,11 @@ iso_stream_schedule (
1600 */ 1604 */
1601 now2 = (now - base) & (mod - 1); 1605 now2 = (now - base) & (mod - 1);
1602 1606
1603 /* Is the schedule already full? */ 1607 /* Is the schedule about to wrap around? */
1604 if (unlikely(!empty && start < period)) { 1608 if (unlikely(!empty && start < period)) {
1605 ehci_dbg(ehci, "iso sched full %p (%u-%u < %u mod %u)\n", 1609 ehci_dbg(ehci, "request %p would overflow (%u-%u < %u mod %u)\n",
1606 urb, stream->next_uframe, base, period, mod); 1610 urb, stream->next_uframe, base, period, mod);
1607 status = -ENOSPC; 1611 status = -EFBIG;
1608 goto fail; 1612 goto fail;
1609 } 1613 }
1610 1614
@@ -1671,10 +1675,6 @@ iso_stream_schedule (
1671 urb->start_frame = start & (mod - 1); 1675 urb->start_frame = start & (mod - 1);
1672 if (!stream->highspeed) 1676 if (!stream->highspeed)
1673 urb->start_frame >>= 3; 1677 urb->start_frame >>= 3;
1674
1675 /* Make sure scan_isoc() sees these */
1676 if (ehci->isoc_count == 0)
1677 ehci->last_iso_frame = now >> 3;
1678 return status; 1678 return status;
1679 1679
1680 fail: 1680 fail: