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xhci: fix isoc endpoint dequeue from advancing too far on transaction error
[firefly-linux-kernel-4.4.55.git]
/
drivers
/
usb
/
host
/
xhci-ring.c
diff --git
a/drivers/usb/host/xhci-ring.c
b/drivers/usb/host/xhci-ring.c
index f5397a517c54ce5a7df00b60e4b2482a2fd8b16c..ae0894c7ee1174e6daf52ca2296527e7557456bc 100644
(file)
--- a/
drivers/usb/host/xhci-ring.c
+++ b/
drivers/usb/host/xhci-ring.c
@@
-2026,8
+2026,13
@@
static int process_isoc_td(struct xhci_hcd *xhci, struct xhci_td *td,
break;
case COMP_DEV_ERR:
case COMP_STALL:
+ frame->status = -EPROTO;
+ skip_td = true;
+ break;
case COMP_TX_ERR:
frame->status = -EPROTO;
+ if (event_trb != td->last_trb)
+ return 0;
skip_td = true;
break;
case COMP_STOP: