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Commit c0a2e4d1 authored by Julian Wiedmann's avatar Julian Wiedmann Committed by David S. Miller
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s390/qeth: conclude all event processing before offlining a card



Work for Bridgeport events is currently placed on a driver-wide
workqueue. If the card is removed and freed while any such work is still
active, this causes a use-after-free.
So put the events on a per-card queue, where we can control their
lifetime. As we also don't want stale events to last beyond an
offline & online cycle, flush this queue when setting the card offline.

Fixes: b4d72c08 ("qeth: bridgeport support - basic control")
Signed-off-by: default avatarJulian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent c2780c1a
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