diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-12-21 11:11:12 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-12-21 11:11:12 -0800 |
| commit | bfccd95e7aba73d0d3154912b17b855cb9938c50 (patch) | |
| tree | 3250b7806b873170a3ff7dba0aa1664e57c5bde9 /drivers/usb/core/hub.c | |
| parent | 252ca494ac75f0dc47469f130d6dc67ed14081f4 (diff) | |
| parent | 4ef7675344d687a0ef5b0d7c0cee12da005870c0 (diff) | |
| download | linux-bfccd95e7aba73d0d3154912b17b855cb9938c50.tar.bz2 | |
Merge 4.4-rc6 into usb-next
We want the USB and PHY fixes in here as well to make things easier for
testing and development.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/core/hub.c')
| -rw-r--r-- | drivers/usb/core/hub.c | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 5e32ce74e376..51b436918f78 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -1035,10 +1035,20 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type) unsigned delay; /* Continue a partial initialization */ - if (type == HUB_INIT2) - goto init2; - if (type == HUB_INIT3) + if (type == HUB_INIT2 || type == HUB_INIT3) { + device_lock(hub->intfdev); + + /* Was the hub disconnected while we were waiting? */ + if (hub->disconnected) { + device_unlock(hub->intfdev); + kref_put(&hub->kref, hub_release); + return; + } + if (type == HUB_INIT2) + goto init2; goto init3; + } + kref_get(&hub->kref); /* The superspeed hub except for root hub has to use Hub Depth * value as an offset into the route string to locate the bits @@ -1236,6 +1246,7 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type) queue_delayed_work(system_power_efficient_wq, &hub->init_work, msecs_to_jiffies(delay)); + device_unlock(hub->intfdev); return; /* Continues at init3: below */ } else { msleep(delay); @@ -1257,6 +1268,11 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type) /* Allow autosuspend if it was suppressed */ if (type <= HUB_INIT3) usb_autopm_put_interface_async(to_usb_interface(hub->intfdev)); + + if (type == HUB_INIT2 || type == HUB_INIT3) + device_unlock(hub->intfdev); + + kref_put(&hub->kref, hub_release); } /* Implement the continuations for the delays above */ |