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nl80211: call cfg80211_dev_rename() under RTNL

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This is required, and we have an assertion, move the RTNL
unlock down to cover cfg80211_dev_rename().

Fixes: a05829a722 ("cfg80211: avoid holding the RTNL when calling the driver")
Reported-by: syzbot+ed107c5fa3e21cdcd86e@syzkaller.appspotmail.com
Link: https://lore.kernel.org/r/20210128183454.16a4ea036740.I2beeb391dc322d6f1df3ee2612e714e0a7817397@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2021-01-28 18:35:25 +01:00
parent d1f3bdd4ea
commit 0391a45c80
1 changed files with 1 additions and 1 deletions
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2
net/wireless/nl80211.c
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@ -3220,7 +3220,6 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
wdev = netdev->ieee80211_ptr;
wiphy_lock(&rdev->wiphy);
rtnl_unlock();
/*
* end workaround code, by now the rdev is available
@ -3230,6 +3229,7 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
if (info->attrs[NL80211_ATTR_WIPHY_NAME])
result = cfg80211_dev_rename(
rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
rtnl_unlock();
if (result)
goto out;