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path: root/drivers/net/wireless/st/cw1200/scan.c
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Diffstat (limited to 'drivers/net/wireless/st/cw1200/scan.c')
-rw-r--r--drivers/net/wireless/st/cw1200/scan.c13
1 files changed, 6 insertions, 7 deletions
diff --git a/drivers/net/wireless/st/cw1200/scan.c b/drivers/net/wireless/st/cw1200/scan.c
index 67213f11acbd..0a9eac93dd01 100644
--- a/drivers/net/wireless/st/cw1200/scan.c
+++ b/drivers/net/wireless/st/cw1200/scan.c
@@ -78,6 +78,10 @@ int cw1200_hw_scan(struct ieee80211_hw *hw,
if (req->n_ssids > WSM_SCAN_MAX_NUM_OF_SSIDS)
return -EINVAL;
+ /* will be unlocked in cw1200_scan_work() */
+ down(&priv->scan.lock);
+ mutex_lock(&priv->conf_mutex);
+
frame.skb = ieee80211_probereq_get(hw, priv->vif->addr, NULL, 0,
req->ie_len);
if (!frame.skb)
@@ -86,19 +90,15 @@ int cw1200_hw_scan(struct ieee80211_hw *hw,
if (req->ie_len)
skb_put_data(frame.skb, req->ie, req->ie_len);
- /* will be unlocked in cw1200_scan_work() */
- down(&priv->scan.lock);
- mutex_lock(&priv->conf_mutex);
-
ret = wsm_set_template_frame(priv, &frame);
if (!ret) {
/* Host want to be the probe responder. */
ret = wsm_set_probe_responder(priv, true);
}
if (ret) {
+ dev_kfree_skb(frame.skb);
mutex_unlock(&priv->conf_mutex);
up(&priv->scan.lock);
- dev_kfree_skb(frame.skb);
return ret;
}
@@ -120,10 +120,9 @@ int cw1200_hw_scan(struct ieee80211_hw *hw,
++priv->scan.n_ssids;
}
- mutex_unlock(&priv->conf_mutex);
-
if (frame.skb)
dev_kfree_skb(frame.skb);
+ mutex_unlock(&priv->conf_mutex);
queue_work(priv->workqueue, &priv->scan.work);
return 0;
}