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usb: host: tegra: fix warning messages in ehci_remove

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Existing implementation of tegra_ehci_remove() calls
usb_put_hcd(hcd) first and then iounmap(hcd->regs).

usb_put_hcd() implementation calls hcd_release()
which frees up memory allocated for hcd.

As iounmap is trying to unmap hcd->regs, after hcd
getting freed up, warning messages were observed during
unload of USB.

Hence fixing it.

Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Venu Byravarasu 2012-08-10 11:42:43 +05:30 committed by Greg Kroah-Hartman
parent cc59c7a963
commit ecc8a0cdca
1 changed files with 2 additions and 1 deletions
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3
drivers/usb/host/ehci-tegra.c
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@ -799,11 +799,12 @@ static int tegra_ehci_remove(struct platform_device *pdev)
#endif
usb_remove_hcd(hcd);
usb_put_hcd(hcd);
tegra_usb_phy_close(tegra->phy);
iounmap(hcd->regs);
usb_put_hcd(hcd);
clk_disable_unprepare(tegra->clk);
clk_put(tegra->clk);