1 files changed, 11 insertions, 0 deletions

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 1e728fff474e..31b807af3235 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -1908,6 +1908,11 @@ static int nl80211_get_mesh_params(struct sk_buff *skb,
         if (err)
                 return err;
 
+        if (!drv->ops->get_mesh_params) {
+                err = -EOPNOTSUPP;
+                goto out;
+        }
+
         /* Get the mesh params */
         rtnl_lock();
         err = drv->ops->get_mesh_params(&drv->wiphy, dev, &cur_params);
@@ -2017,6 +2022,11 @@ static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info)
         if (err)
                 return err;
 
+        if (!drv->ops->set_mesh_params) {
+                err = -EOPNOTSUPP;
+                goto out;
+        }
+
         /* This makes sure that there aren't more than 32 mesh config
          * parameters (otherwise our bitfield scheme would not work.) */
         BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
@@ -2061,6 +2071,7 @@ static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info)
         err = drv->ops->set_mesh_params(&drv->wiphy, dev, &cfg, mask);
         rtnl_unlock();
 
+ out:
         /* cleanup */
         cfg80211_put_dev(drv);
         dev_put(dev);