From: Erik Slagter <erik@slagter.name>
Date: Wed, 11 May 2011 10:06:55 +0000 (+0200)
Subject: USB: cdc_acm: Fix oops when Droids MuIn LCD is connected
X-Git-Tag: v2.6.39.1~53
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=20a5c175ee2efee6a4e7410dc567ec2343e1933f;p=pandora-kernel.git

USB: cdc_acm: Fix oops when Droids MuIn LCD is connected

commit fd5054c169d29747a44b4e1419ff47f57ae82dbc upstream.

The Droids MuIn LCD operates like a serial remote terminal.
Data received are displayed directly on the LCD. This patch
fixes the kernel null pointer oops when it is plugged in.

Add NO_DATA_INTERFACE quirk to tell the driver that "control"
and "data" interfaces are not separated for this device, which
prevents dereferencing a null pointer in the device probe code.

Signed-off-by: Erik Slagter <erik@slagter.name>
Signed-off-by: Maxin B. John <maxin.john@gmail.com>
Tested-by: Erik Slagter <erik@slagter.name>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

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