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authorHans de Goede <hdegoede@redhat.com>2014-08-19 15:17:56 +0300
committerBen Hutchings <ben@decadent.org.uk>2014-09-13 23:41:46 +0100
commit498f060a17f9e4a6b655fdbdda6036f560bee4ac (patch)
treef44fb2abab33b57640ebb5dcc14cc18b9c5f8aec /drivers
parent1bc6485405f05ff9912055c67b43fc86b183eec3 (diff)
xhci: Treat not finding the event_seg on COMP_STOP the same as COMP_STOP_INVAL
commit 9a54886342e227433aebc9d374f8ae268a836475 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: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/usb/host/xhci-ring.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index bc5ee840125a..fa2f7d3e92a7 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -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;
}