tree 829c32036a25279bb9aa1fc6077af5fa52f8f29e
parent ba6b702f85a61561d329c4c11d3ed95604924f9a
author Alan Stern <stern@rowland.harvard.edu> 1255106592 -0400
committer Greg Kroah-Hartman <gregkh@suse.de> 1255121525 -0700

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>