From: Thierry Reding <thierry@gilfi.de>
Date: Wed, 3 Apr 2013 19:57:57 +0000 (+0200)
Subject: usb: host: ehci-tegra: Fix oops in error cleanup
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~135^2~68
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=369a9a9d2af702bac3ccd2ade86ddcb2594eb3b1;p=pandora-kernel.git

usb: host: ehci-tegra: Fix oops in error cleanup

The cleanup path checks whether the transceiver was properly initialized
using IS_ERR(). However it can also happen that the cleanup path is run
before the transceiver was initialized (or the operating mode isn't set
to TEGRA_USB_OTG) and is therefore NULL. Add a separate label for error
unwinding and initialize the transceiver field to ERR_PTR(-ENODEV) when
the operating mode isn't TEGRA_USB_OTG to allow for consistent checking.

Signed-off-by: Thierry Reding <thierry@gilfi.de>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

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