34 lines
922 B
Diff
34 lines
922 B
Diff
From: Johannes Berg <johannes.berg@intel.com>
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The recent scan overhaul broke locking
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because now we can jump to code that
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attempts to unlock, while we don't have
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the mutex held. Fix this by holding the
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mutex around all the relevant code.
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Reported-by: Ben Greear <greearb@candelatech.com>
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Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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---
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net/mac80211/scan.c | 3 +--
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1 file changed, 1 insertion(+), 2 deletions(-)
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--- a/net/mac80211/scan.c
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+++ b/net/mac80211/scan.c
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@@ -686,8 +686,6 @@ void ieee80211_scan_work(struct work_str
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goto out_complete;
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}
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- mutex_unlock(&local->mtx);
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-
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/*
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* as long as no delay is required advance immediately
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* without scheduling a new work
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@@ -718,6 +716,7 @@ void ieee80211_scan_work(struct work_str
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} while (next_delay == 0);
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ieee80211_queue_delayed_work(&local->hw, &local->scan_work, next_delay);
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+ mutex_unlock(&local->mtx);
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return;
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out_complete:
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