From: Clemens Ladisch <clemens@ladisch.de>
Date: Mon, 1 Mar 2010 16:18:56 +0000 (+0100)
Subject: USB: EHCI: adjust ehci_iso_stream for changes in ehci_qh
X-Git-Tag: v2.6.34-rc2~8^2~37
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1082f57abfa26590b60c43f503afb24102a37016;p=pandora-kernel.git

USB: EHCI: adjust ehci_iso_stream for changes in ehci_qh

The EHCI driver stores in usb_host_endpoint.hcpriv a pointer to either
an ehci_qh or an ehci_iso_stream structure, and uses the contents of the
hw_info1 field to distinguish the two cases.

After ehci_qh was split into hw and sw parts, ehci_iso_stream must also
be adjusted so that it again looks like an ehci_qh structure.

This fixes a NULL pointer access in ehci_endpoint_disable() when it
tries to access qh->hw->hw_info1.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Reported-by: Colin Fletcher <colin.m.fletcher@googlemail.com>
Cc: stable <stable@kernel.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

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