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nl80211: Make nl80211_send_mlme_event() atomic

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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>
This commit is contained in:
Jouni Malinen 2009-04-18 21:53:15 +03:00 committed by John W. Linville
parent e10a9dfc35
commit d91c01c757
1 changed files with 2 additions and 2 deletions
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4
net/wireless/nl80211.c
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@ -3334,7 +3334,7 @@ static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
struct sk_buff *msg; struct sk_buff *msg;
void *hdr; void *hdr;
msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); msg = nlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC);
if (!msg) if (!msg)
return; return;
@ -3353,7 +3353,7 @@ static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
return; return;
} }
genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, GFP_KERNEL); genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, GFP_ATOMIC);
return; return;
nla_put_failure: nla_put_failure: