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USB: ehci-platform: fix companion-device leak

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Make sure do drop the reference taken to the companion device during
resume.

Fixes: d4d75128b8 ("usb: host: ehci-platform: fix usb 1.1 device is not connected in system resume")
Cc: stable <[email protected]>     # 4.11
Signed-off-by: Johan Hovold <[email protected]>
Acked-by: Yoshihiro Shimoda <[email protected]>
Acked-by: Alan Stern <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Johan Hovold 2017-05-16 16:26:13 +02:00 • committed by Greg Kroah-Hartman
commit a7415477a2
1 changed files with 3 additions and 1 deletions
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4
drivers/usb/host/ehci-platform.c
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@ -384,8 +384,10 @@ static int ehci_platform_resume(struct device *dev)
}
companion_dev = usb_of_get_companion_dev(hcd->self.controller);
if (companion_dev)
if (companion_dev) {
device_pm_wait_for_dev(hcd->self.controller, companion_dev);
put_device(companion_dev);
}
ehci_resume(hcd, priv->reset_on_resume);
return 0;