nl80211: Make nl80211_send_mlme_event() atomic
One of the code paths sending deauth/disassoc events ends up calling this function with rcu_read_lock held, so we must use GFP_ATOMIC in allocation routines. Reported-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jouni Malinen <j@w1.fi> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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@ -3334,7 +3334,7 @@ static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
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struct sk_buff *msg;
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void *hdr;
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msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
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msg = nlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC);
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if (!msg)
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return;
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@ -3353,7 +3353,7 @@ static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
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return;
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}
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genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, GFP_KERNEL);
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genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, GFP_ATOMIC);
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return;
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nla_put_failure:
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