From: Raja Mani <rmani@xxxxxxxxxxxxxxxx>
It's safe to check endpoint id values before it get
really used. Found this on code review.
Signed-off-by: Raja Mani <rmani@xxxxxxxxxxxxxxxx>
---
drivers/net/wireless/ath/ath6kl/txrx.c | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/drivers/net/wireless/ath/ath6kl/txrx.c b/drivers/net/wireless/ath/ath6kl/txrx.c
index e867193..4ea6559 100644
--- a/drivers/net/wireless/ath/ath6kl/txrx.c
+++ b/drivers/net/wireless/ath/ath6kl/txrx.c
@@ -294,6 +294,12 @@ 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,
--
1.7.1
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