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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)
committerBen Hutchings <ben@decadent.org.uk>
Wed, 30 May 2012 23:43:40 +0000 (00:43 +0100)
commit26f15a29b18316e896973407efccebabbf8542f2
tree28cf6ab9c009804df37476861b255c8ba9bb2e28tree | snapshot
parent2dbbfc3960b2bef1dae52c3c5f85382dab0b427ccommit | 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>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
drivers/usb/class/cdc-wdm.c diff | blob | history
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