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USB: cdc-wdm: poll must return POLLHUP if device is gone
authorBjørn Mork <bjorn@mork.no>
Wed, 9 May 2012 11:53:21 +0000 (13:53 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 1 Jun 2012 07:12:55 +0000 (15:12 +0800)
commitbfd6d6af769c5cd62aa9ed75b038ea3d234b090b
tree6ccdc947dad33041a50ccd4d1f7e8707ee52c92dtree | snapshot
parent53a8734d0b66c7fb78e6cb6f0d2a559e3a255f9ecommit | diff
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>
drivers/usb/class/cdc-wdm.c diff | blob | history
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