mac80211: remove pointless chanctx NULL check

If chanctx is derived as container_of() from a non-NULL pointer,
it can't ever be NULL. Since we checked conf before, that's true
here, so remove the useless NULL check.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 5d4afea..e29ff57 100644 (file)
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -2961,10 +2961,6 @@ __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
        }
 
        chanctx = container_of(conf, struct ieee80211_chanctx, conf);
-       if (!chanctx) {
-               err = -EBUSY;
-               goto out;
-       }
 
        ch_switch.timestamp = 0;
        ch_switch.device_timestamp = 0;