diff options
Diffstat (limited to 'drivers/usb/core/message.c')
| -rw-r--r-- | drivers/usb/core/message.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c index 1580c81a0db7..28c6cf225780 100644 --- a/drivers/usb/core/message.c +++ b/drivers/usb/core/message.c @@ -1366,9 +1366,6 @@ int usb_set_configuration(struct usb_device *dev, int configuration) if (cp && configuration == 0) dev_warn(&dev->dev, "config 0 descriptor??\n"); - if (dev->state == USB_STATE_SUSPENDED) - return -EHOSTUNREACH; - /* Allocate memory for new interfaces before doing anything else, * so that if we run out then nothing will have changed. */ n = nintf = 0; @@ -1403,6 +1400,11 @@ free_interfaces: configuration, -i); } + /* Wake up the device so we can send it the Set-Config request */ + ret = usb_autoresume_device(dev, 1); + if (ret) + goto free_interfaces; + /* if it's already configured, clear out old state first. * getting rid of old interfaces means unbinding their drivers. */ @@ -1422,6 +1424,7 @@ free_interfaces: dev->actconfig = cp; if (!cp) { usb_set_device_state(dev, USB_STATE_ADDRESS); + usb_autosuspend_device(dev, 1); goto free_interfaces; } usb_set_device_state(dev, USB_STATE_CONFIGURED); @@ -1490,6 +1493,7 @@ free_interfaces: usb_create_sysfs_intf_files (intf); } + usb_autosuspend_device(dev, 1); return 0; } |