diff options
| author | Andiry Xu <andiry.xu@amd.com> | 2012-01-18 17:47:12 +0800 |
|---|---|---|
| committer | Sarah Sharp <sarah.a.sharp@linux.intel.com> | 2012-01-25 12:55:19 -0800 |
| commit | cf840551a884360841bd3d3ce1ad0868ff0b759a (patch) | |
| tree | 9b7dfd0feb36b73060d81d38df7b7db88aefd3e9 | |
| parent | 7c24814f7eb9a194b11507b43ca0b947415754c2 (diff) | |
| download | linux-cf840551a884360841bd3d3ce1ad0868ff0b759a.tar.gz linux-cf840551a884360841bd3d3ce1ad0868ff0b759a.tar.bz2 linux-cf840551a884360841bd3d3ce1ad0868ff0b759a.zip | |
xHCI: Cleanup isoc transfer ring when TD length mismatch found
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 522989a27c7badb608155b1f1dea3487ed431f74 "xhci: Fix failed
enqueue in the middle of isoch TD."
Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable@vger.kernel.org
| -rw-r--r-- | drivers/usb/host/xhci-ring.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 5a818cbbab44..b62037bff688 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -3324,7 +3324,8 @@ 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; } } |