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authorDan Carpenter <error27@gmail.com>2009-08-09 14:24:09 +0200
committerJohn W. Linville <linville@tuxdriver.com>2009-08-10 16:41:01 -0400
commite9d126cdfa60b575f1b5b02024c4faee27dccf07 (patch)
treea503bcc77224fd655464de9741ce816ec0e2e341 /drivers/net/wireless/ath/ar9170/main.c
parent363ec5614f86110c6a6bdd72ac2147ebafd3ff5e (diff)
ar9170: fix read & write outside array bounds
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>
Diffstat (limited to 'drivers/net/wireless/ath/ar9170/main.c')
-rw-r--r--drivers/net/wireless/ath/ar9170/main.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/net/wireless/ath/ar9170/main.c b/drivers/net/wireless/ath/ar9170/main.c
index 9d38cf60a0d..88c3d857386 100644
--- a/drivers/net/wireless/ath/ar9170/main.c
+++ b/drivers/net/wireless/ath/ar9170/main.c
@@ -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;