tree 91aea74e94706907adfdf0c8be7daca9c6f86259
parent dc8b274f0952f604d72b10698cde6887321a669f
author Dedy Lansky <dlansky@codeaurora.org> 1529060701 +0200
committer Johannes Berg <johannes@sipsolutions.net> 1529060714 +0200

cfg80211: fix rcu in cfg80211_unregister_wdev

Callers of cfg80211_unregister_wdev can free the wdev object
immediately after this function returns. This may crash the kernel
because this wdev object is still in use by other threads.
Add synchronize_rcu() after list_del_rcu to make sure wdev object can
be safely freed.

Signed-off-by: Dedy Lansky <dlansky@codeaurora.org>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>