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| author | Chris Zankel <chris@zankel.net> | 2015-08-29 23:55:58 (GMT) |
|---|---|---|
| committer | Chris Zankel <chris@zankel.net> | 2015-08-29 23:55:58 (GMT) |
| commit | 650c919798c71fb34b77a6f2ba03a06907f06a76 (patch) | |
| tree | d1c60012d4d86846d25f1d0b783b5122c26a2e31 /drivers/usb/core/hcd.c | |
| parent | 895fb3159280fe7695b35ec7c87ec19e13ca5b6e (diff) | |
| parent | 64291f7db5bd8150a74ad2036f1037e6a0428df2 (diff) | |
| download | linux-650c919798c71fb34b77a6f2ba03a06907f06a76.tar.xz | |
Merge tag 'v4.2' into for_next
Linux 4.2
Diffstat (limited to 'drivers/usb/core/hcd.c')
| -rw-r--r-- | drivers/usb/core/hcd.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index be5b207..cbcd092 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -1022,9 +1022,12 @@ static int register_root_hub(struct usb_hcd *hcd) dev_name(&usb_dev->dev), retval); return (retval < 0) ? retval : -EMSGSIZE; } - if (usb_dev->speed == USB_SPEED_SUPER) { + + if (le16_to_cpu(usb_dev->descriptor.bcdUSB) >= 0x0201) { retval = usb_get_bos_descriptor(usb_dev); - if (retval < 0) { + if (!retval) { + usb_dev->lpm_capable = usb_device_supports_lpm(usb_dev); + } else if (usb_dev->speed == USB_SPEED_SUPER) { mutex_unlock(&usb_bus_list_lock); dev_dbg(parent_dev, "can't read %s bos descriptor %d\n", dev_name(&usb_dev->dev), retval); |