Commit 498f060a authored by Hans de Goede's avatar Hans de Goede Committed by Ben Hutchings

xhci: Treat not finding the event_seg on COMP_STOP the same as COMP_STOP_INVAL

commit 9a548863 upstream.

When using a Renesas uPD720231 chipset usb-3 uas to sata bridge with a 120G
Crucial M500 ssd, model string: Crucial_ CT120M500SSD1, together with a
the integrated Intel xhci controller on a Haswell laptop:

00:14.0 USB controller [0c03]: Intel Corporation 8 Series USB xHCI HC [8086:9c31] (rev 04)

The following error gets logged to dmesg:

xhci error: Transfer event TRB DMA ptr not part of current TD

Treating COMP_STOP the same as COMP_STOP_INVAL when no event_seg gets found
fixes this.
Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
Signed-off-by: default avatarMathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarBen Hutchings <ben@decadent.org.uk>
parent 1bc64854
......@@ -2433,7 +2433,8 @@ static int handle_tx_event(struct xhci_hcd *xhci,
* last TRB of the previous TD. The command completion handle
* will take care the rest.
*/
if (!event_seg && trb_comp_code == COMP_STOP_INVAL) {
if (!event_seg && (trb_comp_code == COMP_STOP ||
trb_comp_code == COMP_STOP_INVAL)) {
ret = 0;
goto cleanup;
}
......
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