From: Gianluca Anzolin <gianluca@sottospazio.it>
Date: Mon, 29 Jul 2013 15:08:08 +0000 (+0200)
Subject: Bluetooth: Take proper tty_struct references
X-Git-Tag: v3.12-rc1~132^2~84^2^2~54^2~15
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=396dc223dd36edd218650d042a07c5e61f022c5b;p=pandora-kernel.git

Bluetooth: Take proper tty_struct references

In net/bluetooth/rfcomm/tty.c the struct tty_struct is used without
taking references. This may lead to a use-after-free of the rfcomm tty.

Fix this by taking references properly, using the tty_port_* helpers
when possible.

The raw assignments of dev->port.tty in rfcomm_tty_open/close are
addressed in the later commit 'rfcomm: Implement .activate, .shutdown
and .carrier_raised methods'.

Signed-off-by: Gianluca Anzolin <gianluca@sottospazio.it>
Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---

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