Commit a587c832 authored by Yuri Benditovich's avatar Yuri Benditovich Committed by Gerd Hoffmann
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usb: XHCI shall not halt isochronous endpoints 



According to the XHCI spec (4.10.2) the controller
never halts isochronous endpoints. This commit prevent
stop of isochronous streaming when sporadic errors
status received from backends.

Signed-off-by: default avatarYuri Benditovich <yuri.benditovich@janustech.com>
Message-id: 20190128200444.5128-2-yuri.benditovich@janustech.com
Signed-off-by: default avatarGerd Hoffmann <kraxel@redhat.com>
parent 75a49fc6

hw/usb/hcd-xhci.c

+5 −0
Original line number Diff line number Diff line
@@ -1571,6 +1571,11 @@ static void xhci_stall_ep(XHCITransfer *xfer) 
    uint32_t err;

    XHCIStreamContext *sctx;



    if (epctx->type == ET_ISO_IN || epctx->type == ET_ISO_OUT) {

        /* never halt isoch endpoints, 4.10.2 */

        return;

    }



    if (epctx->nr_pstreams) {

        sctx = xhci_find_stream(epctx, xfer->streamid, &err);

        if (sctx == NULL) {