diff options
Diffstat (limited to 'sys/dev/usb2/controller/usb2_controller.c')
| -rw-r--r-- | sys/dev/usb2/controller/usb2_controller.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/sys/dev/usb2/controller/usb2_controller.c b/sys/dev/usb2/controller/usb2_controller.c index f8d94cf..cd334ab 100644 --- a/sys/dev/usb2/controller/usb2_controller.c +++ b/sys/dev/usb2/controller/usb2_controller.c @@ -126,6 +126,10 @@ usb2_attach(device_t dev) DPRINTFN(0, "USB device has no ivars\n"); return (ENXIO); } + + /* delay vfs_mountroot until the bus is explored */ + bus->bus_roothold = root_mount_hold(device_get_nameunit(dev)); + if (usb2_post_init_called) { mtx_lock(&Giant); usb2_attach_sub(dev, bus); @@ -153,6 +157,10 @@ usb2_detach(device_t dev) usb2_callout_drain(&bus->power_wdog); /* Let the USB explore process detach all devices. */ + if (bus->bus_roothold != NULL) { + root_mount_rel(bus->bus_roothold); + bus->bus_roothold = NULL; + } USB_BUS_LOCK(bus); if (usb2_proc_msignal(&bus->explore_proc, @@ -225,6 +233,10 @@ usb2_bus_explore(struct usb2_proc_msg *pm) USB_BUS_LOCK(bus); } + if (bus->bus_roothold != NULL) { + root_mount_rel(bus->bus_roothold); + bus->bus_roothold = NULL; + } } /*------------------------------------------------------------------------* |
