diff options
Diffstat (limited to 'drivers/usb/host')
| -rw-r--r-- | drivers/usb/host/xhci-dbgcap.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/usb/host/xhci-dbgcap.c b/drivers/usb/host/xhci-dbgcap.c index 1fbfd89d0a0f..387f124a8334 100644 --- a/drivers/usb/host/xhci-dbgcap.c +++ b/drivers/usb/host/xhci-dbgcap.c @@ -508,16 +508,18 @@ static int xhci_do_dbc_start(struct xhci_hcd *xhci) return 0; } -static void xhci_do_dbc_stop(struct xhci_hcd *xhci) +static int xhci_do_dbc_stop(struct xhci_hcd *xhci) { struct xhci_dbc *dbc = xhci->dbc; if (dbc->state == DS_DISABLED) - return; + return -1; writel(0, &dbc->regs->control); xhci_dbc_mem_cleanup(xhci); dbc->state = DS_DISABLED; + + return 0; } static int xhci_dbc_start(struct xhci_hcd *xhci) @@ -544,6 +546,7 @@ static int xhci_dbc_start(struct xhci_hcd *xhci) static void xhci_dbc_stop(struct xhci_hcd *xhci) { + int ret; unsigned long flags; struct xhci_dbc *dbc = xhci->dbc; struct dbc_port *port = &dbc->port; @@ -556,10 +559,11 @@ static void xhci_dbc_stop(struct xhci_hcd *xhci) xhci_dbc_tty_unregister_device(xhci); spin_lock_irqsave(&dbc->lock, flags); - xhci_do_dbc_stop(xhci); + ret = xhci_do_dbc_stop(xhci); spin_unlock_irqrestore(&dbc->lock, flags); - pm_runtime_put_sync(xhci_to_hcd(xhci)->self.controller); + if (!ret) + pm_runtime_put_sync(xhci_to_hcd(xhci)->self.controller); } static void |