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authorThinh Nguyen <Thinh.Nguyen@synopsys.com>2019-05-14 14:38:31 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-05-21 10:25:58 +0200
commitfea3af5e0358b014c653561109c11ebd3ecdbff2 (patch)
tree4030893ec3bd74461161941c04774927be5216e2 /drivers/usb/core
parentd991f855cb4f84c638e2016818259720ceed4191 (diff)
downloadblackbird-op-linux-fea3af5e0358b014c653561109c11ebd3ecdbff2.tar.gz
blackbird-op-linux-fea3af5e0358b014c653561109c11ebd3ecdbff2.zip
usb: core: hub: Enable/disable U1/U2 in configured state
SET_FEATURE(U1/U2_ENABLE) and CLEAR_FEATURE(U1/U2) only apply while the device is in configured state. Add proper check in usb_disable_lpm() and usb_enable_lpm() for enabling/disabling device-initiated U1/U2. Signed-off-by: Thinh Nguyen <thinhn@synopsys.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/core')
-rw-r--r--drivers/usb/core/hub.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 2f94568ba385..026b652d4f38 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -4139,7 +4139,7 @@ int usb_disable_lpm(struct usb_device *udev)
if (!udev || !udev->parent ||
udev->speed < USB_SPEED_SUPER ||
!udev->lpm_capable ||
- udev->state < USB_STATE_DEFAULT)
+ udev->state < USB_STATE_CONFIGURED)
return 0;
hcd = bus_to_hcd(udev->bus);
@@ -4198,7 +4198,7 @@ void usb_enable_lpm(struct usb_device *udev)
if (!udev || !udev->parent ||
udev->speed < USB_SPEED_SUPER ||
!udev->lpm_capable ||
- udev->state < USB_STATE_DEFAULT)
+ udev->state < USB_STATE_CONFIGURED)
return;
udev->lpm_disable_count--;
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