21 lines
653 B
Diff
21 lines
653 B
Diff
From a0d8418d70e4411b1dc7837f3368e9b7102703fa Mon Sep 17 00:00:00 2001
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From: Jake Day <jake@ninebysix.com>
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Date: Thu, 1 Feb 2018 19:25:58 -0500
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Subject: fix for surface sd card reader
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diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
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index 8f7d942..3365703 100644
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--- a/drivers/usb/core/hub.c
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+++ b/drivers/usb/core/hub.c
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@@ -4047,7 +4047,8 @@ void usb_enable_lpm(struct usb_device *udev)
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if (!udev || !udev->parent ||
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udev->speed < USB_SPEED_SUPER ||
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!udev->lpm_capable ||
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- udev->state < USB_STATE_DEFAULT)
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+ udev->state < USB_STATE_DEFAULT ||
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+ !udev->bos || !udev->bos->ss_cap)
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return;
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udev->lpm_disable_count--;
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