Commit 2089fa6d authored by Andiry Xu's avatar Andiry Xu Committed by Greg Kroah-Hartman

xHCI: Cleanup isoc transfer ring when TD length mismatch found

commit cf840551 upstream.

When a TD length mismatch is found during isoc TRB enqueue, it directly
returns -EINVAL. However, isoc transfer is partially enqueued at this time,
and the ring should be cleared.

This should be backported to kernels as old as 2.6.36, which contain the
commit 522989a2 "xhci: Fix failed
enqueue in the middle of isoch TD."
Signed-off-by: default avatarAndiry Xu <andiry.xu@amd.com>
Signed-off-by: default avatarSarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 28d9b0f6
......@@ -3373,7 +3373,8 @@ static int xhci_queue_isoc_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
/* Check TD length */
if (running_total != td_len) {
xhci_err(xhci, "ISOC TD length unmatch\n");
return -EINVAL;
ret = -EINVAL;
goto cleanup;
}
}
......
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