From: Oliver Neukum <oliver@neukum.org>
Date: Thu, 2 Jul 2009 10:07:07 +0000 (+0200)
Subject: USB: legousbtower: make poll notice disconnect
X-Git-Tag: v2.6.32-rc1~174^2~96
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d35b4ce164f393ad58580ad3e9fdde86328739ad;p=pandora-kernel.git

USB: legousbtower: make poll notice disconnect

poll needs to return an error if a device is disconnected
  - make poll check for device's presence
  - wake all waiters in disconnect

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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