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Message-ID: <1344579163-10190-1-git-send-email-vbyravarasu@nvidia.com> Date: Fri, 10 Aug 2012 11:42:43 +0530 From: Venu Byravarasu <vbyravarasu@...dia.com> To: <stern@...land.harvard.edu>, <gregkh@...uxfoundation.org> CC: <linux-kernel@...r.kernel.org>, <linux-usb@...r.kernel.org>, Venu Byravarasu <vbyravarasu@...dia.com> Subject: [PATCH] usb: host: tegra: fix warning messages in ehci_remove 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@...dia.com> --- drivers/usb/host/ehci-tegra.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c index 950e95e..26dedb3 100644 --- a/drivers/usb/host/ehci-tegra.c +++ b/drivers/usb/host/ehci-tegra.c @@ -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); -- 1.7.1.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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