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ath6kl: Check for valid endpoint ID values in ath6kl_control_tx()

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It's safe to check endpoint id values before it get
really used. Found this on code review.

Signed-off-by: Raja Mani <rmani@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Raja Mani 2012-09-21 15:08:55 +05:30 committed by Kalle Valo
parent d54601b92f
commit 363f149ce3
1 changed files with 6 additions and 0 deletions
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6
drivers/net/wireless/ath/ath6kl/txrx.c
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@ -293,6 +293,12 @@ int ath6kl_control_tx(void *devt, struct sk_buff *skb,
return -EACCES;
}
if (WARN_ON_ONCE(eid == ENDPOINT_UNUSED ||
eid >= ENDPOINT_MAX)) {
status = -EINVAL;
goto fail_ctrl_tx;
}
spin_lock_bh(&ar->lock);
ath6kl_dbg(ATH6KL_DBG_WLAN_TX,