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cfg80211: shut down interfaces on failed resume 

If resume fails, we should shut down all interfaces as the
hardware is probably dead. This was/is already done now in
mac80211, but we need to change that due to locking issues,
so move it here and do it without the wiphy lock held.

Cc: stable@vger.kernel.org
Fixes: 2fe8ef1062 ("cfg80211: change netdev registration/unregistration semantics")
Link: https://lore.kernel.org/r/20210608113226.d564ca69de7c.I2e3c3e5d410b72a4f63bade4fb075df041b3d92f@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2021-06-08 11:32:29 +02:00
parent 43076c1e07
commit 65bec836da
1 changed files with 4 additions and 0 deletions
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4
net/wireless/sysfs.c
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@ -133,6 +133,10 @@ static int wiphy_resume(struct device *dev)
if (rdev->wiphy.registered && rdev->ops->resume) if (rdev->wiphy.registered && rdev->ops->resume)
ret = rdev_resume(rdev); ret = rdev_resume(rdev);
wiphy_unlock(&rdev->wiphy); wiphy_unlock(&rdev->wiphy);
if (ret)
cfg80211_shutdown_all_interfaces(&rdev->wiphy);
rtnl_unlock(); rtnl_unlock();
return ret; return ret;