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Diffstat (limited to 'net')
-rw-r--r--net/wireless/nl80211.c15
1 files changed, 8 insertions, 7 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 44771a690d5..a745932d137 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -422,19 +422,20 @@ static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
memset(&params, 0, sizeof(params));
- if (info->attrs[NL80211_ATTR_IFTYPE]) {
- type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
- if (type > NL80211_IFTYPE_MAX)
- return -EINVAL;
- } else
- return -EINVAL;
-
err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
if (err)
return err;
ifindex = dev->ifindex;
+ type = dev->ieee80211_ptr->iftype;
dev_put(dev);
+ err = -EINVAL;
+ if (info->attrs[NL80211_ATTR_IFTYPE]) {
+ type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
+ if (type > NL80211_IFTYPE_MAX)
+ goto unlock;
+ }
+
if (!drv->ops->change_virtual_intf ||
!(drv->wiphy.interface_modes & (1 << type))) {
err = -EOPNOTSUPP;