tree 85db6db24e0ee5d8c018fa9b58a720d3da521b64
parent e67d70f2f55d90c79dcb384ad5b798f0f9a68085
author Alan Stern <stern@rowland.harvard.edu> 1217347264 -0400
committer Greg Kroah-Hartman <gregkh@suse.de> 1218673970 -0700

usb-serial: don't release unregistered minors

This patch (as1121) fixes a bug in the USB serial core.  When a device
is unregistered, the core will give back its minors -- even if the
device hasn't been assigned any!

The patch reserves the highest minor value (255) to mean that no minor
was assigned.  It also removes some dead code and does a small style
fixup.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>