diff options
Diffstat (limited to 'MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c')
| -rw-r--r-- | MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c b/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c index 1130b6aac1..b6078b1f09 100644 --- a/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c +++ b/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c @@ -1009,7 +1009,11 @@ IsAsyncIntTrb ( return TRUE;
}
CheckedTrb++;
- if ((UINTN)CheckedTrb >= ((UINTN) CheckedUrb->Ring->RingSeg0 + sizeof (TRB_TEMPLATE) * CheckedUrb->Ring->TrbNumber)) {
+ //
+ // If the checked TRB is the link TRB at the end of the transfer ring,
+ // recircle it to the head of the ring.
+ //
+ if (CheckedTrb->Type == TRB_TYPE_LINK) {
CheckedTrb = (TRB_TEMPLATE*) CheckedUrb->Ring->RingSeg0;
}
}
|