mac80211: add missing "break" statement in mesh code

This inserts a missing break statement which, if hit, would cause
the code to fall-through and unlock a spinlock twice. Noticed via
sparse's "lock count wrong in basic block" warning and careful
code inspection.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Cc: Luis Carlos Cobo <luisca@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c
index 0b0e8d7..c2f4fe7 100644
--- a/net/mac80211/mesh_plink.c
+++ b/net/mac80211/mesh_plink.c
@@ -691,6 +691,7 @@
 			spin_unlock_bh(&sta->plink_lock);
 			mesh_plink_frame_tx(dev, PLINK_CLOSE, sta->addr, llid,
 					    plid, reason);
+			break;
 		case OPN_ACPT:
 			if (del_timer(&sta->plink_timer))
 				sta_info_put(sta);