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-rw-r--r--hw/usb/hcd-xhci.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/usb/hcd-xhci.c b/hw/usb/hcd-xhci.c
index 706cdc732a..8261d00296 100644
--- a/hw/usb/hcd-xhci.c
+++ b/hw/usb/hcd-xhci.c
@@ -1977,7 +1977,7 @@ static void xhci_calc_iso_kick(XHCIState *xhci, XHCITransfer *xfer,
xfer->mfindex_kick = ((xfer->trbs[0].control >> TRB_TR_FRAMEID_SHIFT)
& TRB_TR_FRAMEID_MASK) << 3;
xfer->mfindex_kick |= mfindex & ~0x3fff;
- if (xfer->mfindex_kick < mfindex) {
+ if (xfer->mfindex_kick + 0x100 < mfindex) {
xfer->mfindex_kick += 0x4000;
}
}