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USB: legousbtower: make poll notice disconnect
authorOliver Neukum <oliver@neukum.org>
Thu, 2 Jul 2009 10:07:07 +0000 (12:07 +0200)
committerGreg Kroah-Hartman <gregkh@suse.de>
Wed, 23 Sep 2009 13:46:28 +0000 (06:46 -0700)
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>

No differences found
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