diff options
Diffstat (limited to 'drivers/usb/host/xhci.h')
| -rw-r--r-- | drivers/usb/host/xhci.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 11a231d61409..31e46cc55807 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1497,6 +1497,8 @@ struct xhci_hcd { struct list_head lpm_failed_devs; /* slot enabling and address device helpers */ + /* these are not thread safe so use mutex */ + struct mutex mutex; struct completion addr_dev; int slot_id; /* For USB 3.0 LPM enable/disable. */ |