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(parent: dc4a787) | patch
mac80211: fix tim_lock locking
authorJohannes Berg <johannes.berg@intel.com>
Fri, 22 Feb 2013 11:55:01 +0000 (12:55 +0100)
committerJohannes Berg <johannes.berg@intel.com>
Mon, 25 Feb 2013 23:09:19 +0000 (00:09 +0100)
commit1b91731d23a3dd8e8d7e3ee21b8c6d6d4cde62c1
tree8e4e5ecaa9429f2592905f8c019082f217682560tree | snapshot
parentdc4a787c8f52f9d6e46156953f8014a3353bcbc7commit | diff
mac80211: fix tim_lock locking

The ieee80211_beacon_add_tim() function might be called
by drivers with BHs enabled, which causes a potential
deadlock if TX happens at the same time and attempts to
lock the tim_lock as well. Use spin_lock_bh to fix it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
net/mac80211/tx.c diff | blob | history
Domain: System / Kernel;