diff options
| -rw-r--r-- | drivers/staging/cw1200/pm.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/staging/cw1200/pm.c b/drivers/staging/cw1200/pm.c index f542e7d51f6..d95e5d3dc9e 100644 --- a/drivers/staging/cw1200/pm.c +++ b/drivers/staging/cw1200/pm.c @@ -297,7 +297,11 @@ int cw1200_wow_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) /* Lock TX. */ wsm_lock_tx_async(priv); - if (priv->hw_bufs_used) + + /* Wait to avoid possible race with bh code. + * But do not wait too long... */ + if (wait_event_timeout(priv->bh_evt_wq, + !priv->hw_bufs_used, HZ / 10) <= 0) goto revert2; /* Set UDP filter */ |