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authorJohannes Berg <johannes.berg@intel.com>2019-02-06 09:03:10 +0300
committerJohannes Berg <johannes.berg@intel.com>2019-02-06 12:38:00 +0300
commit73350424bec9c76cf42d4d502ff156c7d5daf191 (patch)
tree0b9cf425f5f048eb41607af2573d7fd58d5bcfa7 /init
parent0acd99282bef617fdbc4dff29359fe8160f00846 (diff)
downloadlinux-73350424bec9c76cf42d4d502ff156c7d5daf191.tar.xz
cfg80211: pmsr: fix abort locking
When we destroy the interface we already hold the wdev->mtx while calling cfg80211_pmsr_wdev_down(), which assumes this isn't true and flushes the worker that takes the lock, thus leading to a deadlock. Fix this by refactoring the worker and calling its code in cfg80211_pmsr_wdev_down() directly. We still need to flush the work later to make sure it's not still running and will crash, but it will not do anything. Fixes: 9bb7e0f24e7e ("cfg80211: add peer measurement with FTM initiator API") Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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