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cfg80211: fix disassoc while not associated

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When trying to disassociate while not associated,
the kernel would crash rather than refusing the
operation, fix this;

Reported-by: Maxim Levitsky <maximlevitsky@gmail.com>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg 2009-07-27 10:22:28 +02:00 committed by John W. Linville
parent fec247c0d5
commit f9d6b40260
1 changed files with 6 additions and 0 deletions
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6
net/wireless/mlme.c
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@ -545,6 +545,12 @@ static int __cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
ASSERT_WDEV_LOCK(wdev);
if (wdev->sme_state != CFG80211_SME_CONNECTED)
return -ENOTCONN;
if (WARN_ON(!wdev->current_bss))
return -ENOTCONN;
memset(&req, 0, sizeof(req));
req.reason_code = reason;
req.ie = ie;