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-rw-r--r--net/mac80211/cfg.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index a8501f14b16..89a183c2327 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -100,6 +100,9 @@ static int ieee80211_change_iface(struct wiphy *wiphy, int ifindex,
if (ret)
return ret;
+ if (netif_running(sdata->dev))
+ return -EBUSY;
+
if (ieee80211_vif_is_mesh(&sdata->vif) && params->mesh_id_len)
ieee80211_sdata_set_mesh_id(sdata,
params->mesh_id_len,