diff options
| author | Dave Airlie <airlied@redhat.com> | 2014-09-16 03:28:52 +0200 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2014-09-16 03:38:04 +0200 |
| commit | b2efb3f0a1db62aff5e824125785ec6731143b6d (patch) | |
| tree | 67510cec69e18e55d82bed803428b2a5027d92bb /drivers/usb/core/hub.c | |
| parent | Merge branch 'linux-3.18' of git://anongit.freedesktop.org/git/nouveau/linux-... (diff) | |
| parent | Linux 3.17-rc5 (diff) | |
| download | linux-b2efb3f0a1db62aff5e824125785ec6731143b6d.tar.xz linux-b2efb3f0a1db62aff5e824125785ec6731143b6d.zip | |
drm: backmerge tag 'v3.17-rc5' into drm-next
This is requested to get the fixes for intel and radeon into the
same tree for future development work.
i915_display.c: fix missing dev_priv conflict.
Diffstat (limited to 'drivers/usb/core/hub.c')
| -rw-r--r-- | drivers/usb/core/hub.c | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 8a4dcbc7a75f..d481c99a20d7 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -1728,8 +1728,14 @@ static int hub_probe(struct usb_interface *intf, const struct usb_device_id *id) * - Change autosuspend delay of hub can avoid unnecessary auto * suspend timer for hub, also may decrease power consumption * of USB bus. + * + * - If user has indicated to prevent autosuspend by passing + * usbcore.autosuspend = -1 then keep autosuspend disabled. */ - pm_runtime_set_autosuspend_delay(&hdev->dev, 0); +#ifdef CONFIG_PM_RUNTIME + if (hdev->dev.power.autosuspend_delay >= 0) + pm_runtime_set_autosuspend_delay(&hdev->dev, 0); +#endif /* * Hubs have proper suspend/resume support, except for root hubs @@ -2107,8 +2113,8 @@ void usb_disconnect(struct usb_device **pdev) { struct usb_port *port_dev = NULL; struct usb_device *udev = *pdev; - struct usb_hub *hub; - int port1; + struct usb_hub *hub = NULL; + int port1 = 1; /* mark the device as inactive, so any further urb submissions for * this device (and any of its children) will fail immediately. @@ -4631,9 +4637,7 @@ static void hub_port_connect(struct usb_hub *hub, int port1, u16 portstatus, if (status != -ENODEV && port1 != unreliable_port && printk_ratelimit()) - dev_err(&udev->dev, "connect-debounce failed, port %d disabled\n", - port1); - + dev_err(&port_dev->dev, "connect-debounce failed\n"); portstatus &= ~USB_PORT_STAT_CONNECTION; unreliable_port = port1; } else { @@ -5020,9 +5024,10 @@ static void hub_events(void) hub = list_entry(tmp, struct usb_hub, event_list); kref_get(&hub->kref); + hdev = hub->hdev; + usb_get_dev(hdev); spin_unlock_irq(&hub_event_lock); - hdev = hub->hdev; hub_dev = hub->intfdev; intf = to_usb_interface(hub_dev); dev_dbg(hub_dev, "state %d ports %d chg %04x evt %04x\n", @@ -5135,6 +5140,7 @@ static void hub_events(void) usb_autopm_put_interface(intf); loop_disconnected: usb_unlock_device(hdev); + usb_put_dev(hdev); kref_put(&hub->kref, hub_release); } /* end while (1) */ |