From: Bjørn Mork <bjorn@mork.no>
Date: Wed, 9 May 2012 11:53:21 +0000 (+0200)
Subject: USB: cdc-wdm: poll must return POLLHUP if device is gone
X-Git-Tag: v3.2.19~62
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=26f15a29b18316e896973407efccebabbf8542f2;p=pandora-kernel.git

USB: cdc-wdm: poll must return POLLHUP if device is gone

commit 616b6937e348ef2b4c6ea5fef2cd3c441145efb0 upstream.

Else the poll will be restarted indefinitely in a tight loop,
preventing final device cleanup.

Cc: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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