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wifi: mac80211: hold wiphy_lock around concurrency checks

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We want to replace the locking in mac80211 by just the wiphy
mutex, so hold the lock here around concurrency checks for
the future where the chanctx_mtx used inside goes away.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2023-08-28 13:59:58 +02:00
parent 01ca280d32
commit 7a53b71d8e
1 changed files with 3 additions and 2 deletions
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5
net/mac80211/iface.c
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@ -430,12 +430,13 @@ static int ieee80211_open(struct net_device *dev)
if (!is_valid_ether_addr(dev->dev_addr))
return -EADDRNOTAVAIL;
wiphy_lock(sdata->local->hw.wiphy);
err = ieee80211_check_concurrent_iface(sdata, sdata->vif.type);
if (err)
return err;
goto out;
wiphy_lock(sdata->local->hw.wiphy);
err = ieee80211_do_open(&sdata->wdev, true);
out:
wiphy_unlock(sdata->local->hw.wiphy);
return err;