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ar9170: fix read & write outside array bounds

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queue == __AR9170_NUM_TXQ would cause a bug on the next line.

found by Smatch ( http://repo.or.cz/w/smatch.git ).

Cc: stable@kernel.org
Reported-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Dan Carpenter 2009-08-09 14:24:09 +02:00 committed by John W. Linville
parent 363ec5614f
commit e9d126cdfa
1 changed files with 3 additions and 2 deletions
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5
drivers/net/wireless/ath/ar9170/main.c
View file

@ -1967,13 +1967,14 @@ static int ar9170_conf_tx(struct ieee80211_hw *hw, u16 queue,
int ret;
mutex_lock(&ar->mutex);
if ((param) && !(queue > __AR9170_NUM_TXQ)) {
if (queue < __AR9170_NUM_TXQ) {
memcpy(&ar->edcf[ar9170_qos_hwmap[queue]],
param, sizeof(*param));
ret = ar9170_set_qos(ar);
} else
} else {
ret = -EINVAL;
}
mutex_unlock(&ar->mutex);
return ret;