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-rw-r--r--drivers/net/wireless/ath/ath6kl/cfg80211.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/ath6kl/cfg80211.c b/drivers/net/wireless/ath/ath6kl/cfg80211.c
index 45b0d974e4f7..d6806be5895b 100644
--- a/drivers/net/wireless/ath/ath6kl/cfg80211.c
+++ b/drivers/net/wireless/ath/ath6kl/cfg80211.c
@@ -2044,7 +2044,18 @@ static int ath6kl_set_channel(struct wiphy *wiphy, struct net_device *dev,
struct ieee80211_channel *chan,
enum nl80211_channel_type channel_type)
{
- struct ath6kl_vif *vif = netdev_priv(dev);
+ struct ath6kl_vif *vif;
+
+ /*
+ * 'dev' could be NULL if a channel change is required for the hardware
+ * device itself, instead of a particular VIF.
+ *
+ * FIXME: To be handled properly when monitor mode is supported.
+ */
+ if (!dev)
+ return -EBUSY;
+
+ vif = netdev_priv(dev);
if (!ath6kl_cfg80211_ready(vif))
return -EIO;