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Diffstat (limited to 'net/mac80211/driver-ops.h')
-rw-r--r--net/mac80211/driver-ops.h14
1 files changed, 13 insertions, 1 deletions
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index d231c9323ad..020a94a3110 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -12,7 +12,11 @@ static inline int drv_tx(struct ieee80211_local *local, struct sk_buff *skb)
static inline int drv_start(struct ieee80211_local *local)
{
- int ret = local->ops->start(&local->hw);
+ int ret;
+
+ local->started = true;
+ smp_mb();
+ ret = local->ops->start(&local->hw);
trace_drv_start(local, ret);
return ret;
}
@@ -21,6 +25,14 @@ static inline void drv_stop(struct ieee80211_local *local)
{
local->ops->stop(&local->hw);
trace_drv_stop(local);
+
+ /* sync away all work on the tasklet before clearing started */
+ tasklet_disable(&local->tasklet);
+ tasklet_enable(&local->tasklet);
+
+ barrier();
+
+ local->started = false;
}
static inline int drv_add_interface(struct ieee80211_local *local,