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USB: EHCI: tegra: Fix use-after-free in .remove()

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The tegra_ehci_hcd structure is located in the private space allocated
by the core USB code so it must not be accessed after the HCD is
freed.

Signed-off-by: Tuomas Tynkkynen <ttynkkynen@nvidia.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tuomas Tynkkynen 2014-06-17 17:17:40 +03:00 • committed by Greg Kroah-Hartman
parent 6e693739e9
commit 6a70b62122
1 changed files with 2 additions and 1 deletions
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3
drivers/usb/host/ehci-tegra.c
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@ -479,10 +479,11 @@ static int tegra_ehci_remove(struct platform_device *pdev)
usb_phy_shutdown(hcd->phy);
usb_remove_hcd(hcd);
usb_put_hcd(hcd);
clk_disable_unprepare(tegra->clk);
usb_put_hcd(hcd);
return 0;
}