From: Alan Stern <stern@rowland.harvard.edu>
Date: Fri, 9 Oct 2009 16:43:12 +0000 (-0400)
Subject: USB: serial: don't call release without attach
X-Git-Tag: v2.6.32-rc4~4^2~25
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a4720c650b68a5fe7faed2edeb0ad12645f7ae63;p=pandora-kernel.git

USB: serial: don't call release without attach

This patch (as1295) fixes a recently-added bug in the USB serial core.
If certain kinds of errors occur during probing, the core may call a
serial driver's release method without previously calling the attach
method.  This causes some drivers (io_ti in particular) to perform an
invalid memory access.

The patch adds a new flag to keep track of whether or not attach has
been called.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Jean-Denis Girard <jd.girard@sysnux.pf>
CC: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

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