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authorJohannes Berg <johannes.berg@intel.com>2011-11-09 12:14:16 +0100
committerJohn W. Linville <linville@tuxdriver.com>2011-11-09 14:35:56 -0500
commit0ecfe806f146e0cb10c2c5abbb3bb4e91959e41a (patch)
treee70bd8430b61545e91aacc298718634ac217491f /net/xfrm/xfrm_ipcomp.c
parentd929bbc63069396e723a180cde9cb71adc9f76ac (diff)
downloadblackbird-op-linux-0ecfe806f146e0cb10c2c5abbb3bb4e91959e41a.tar.gz
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mac80211: fix race between connection monitor & suspend
When the connection monitor timer fires right before suspend, the following will happen: timer fires -> monitor_work gets queued suspend calls ieee80211_sta_quiesce ieee80211_sta_quiesce: - deletes timer - cancels monitor_work synchronously, running it [note wrong order of these steps] monitor_work runs, re-arming the timer later, timer fires while system should be quiesced This causes a warning: WARNING: at net/mac80211/util.c:540 ieee80211_can_queue_work+0x35/0x40 [mac80211]() but is otherwise harmless. I'm not completely sure this is the scenario Thomas stumbled across, but it is the only way I can right now see the warning in a scenario like the one he reported. Reported-by: Thomas Meyer <thomas@m3y3r.de> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/xfrm/xfrm_ipcomp.c')
0 files changed, 0 insertions, 0 deletions
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