diff options
| author | David S. Miller <davem@davemloft.net> | 2019-06-22 14:59:24 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-06-22 14:59:24 +0200 |
| commit | 92ad6325cb891bb455487bfe90cc47d18aa6ec37 (patch) | |
| tree | 433a7ef938fae69789216043f67eff9f9c6b0c68 /drivers/usb/host/xhci-ring.c | |
| parent | Merge branch 'PCI-let-pci_disable_link_state-propagate-errors' (diff) | |
| parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net (diff) | |
| download | linux-92ad6325cb891bb455487bfe90cc47d18aa6ec37.tar.xz linux-92ad6325cb891bb455487bfe90cc47d18aa6ec37.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Minor SPDX change conflict.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/usb/host/xhci-ring.c')
| -rw-r--r-- | drivers/usb/host/xhci-ring.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index feffceb31e8a..121782e22c01 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -1612,8 +1612,13 @@ static void handle_port_status(struct xhci_hcd *xhci, usb_hcd_resume_root_hub(hcd); } - if (hcd->speed >= HCD_USB3 && (portsc & PORT_PLS_MASK) == XDEV_INACTIVE) + if (hcd->speed >= HCD_USB3 && + (portsc & PORT_PLS_MASK) == XDEV_INACTIVE) { + slot_id = xhci_find_slot_id_by_port(hcd, xhci, hcd_portnum + 1); + if (slot_id && xhci->devs[slot_id]) + xhci->devs[slot_id]->flags |= VDEV_PORT_ERROR; bus_state->port_remote_wakeup &= ~(1 << hcd_portnum); + } if ((portsc & PORT_PLC) && (portsc & PORT_PLS_MASK) == XDEV_RESUME) { xhci_dbg(xhci, "port resume event for port %d\n", port_id); @@ -1801,6 +1806,14 @@ static void xhci_cleanup_halted_endpoint(struct xhci_hcd *xhci, { struct xhci_virt_ep *ep = &xhci->devs[slot_id]->eps[ep_index]; struct xhci_command *command; + + /* + * Avoid resetting endpoint if link is inactive. Can cause host hang. + * Device will be reset soon to recover the link so don't do anything + */ + if (xhci->devs[slot_id]->flags & VDEV_PORT_ERROR) + return; + command = xhci_alloc_command(xhci, false, GFP_ATOMIC); if (!command) return; |