From 4904ab2f87cd1d9e060f9bcac00e349e64622c37 Mon Sep 17 00:00:00 2001
From: Yuanjun Gong <ruc_gongyuanjun@163.com>
Date: Mon, 17 Jul 2023 22:50:08 +0800
Subject: [PATCH] wifi: mt76: fix return value check in mt76x02_mac_process_rx

in mt76x02_mac_process_rx(), return an error code if an
unexpected result is returned by pskb_trim.

Signed-off-by: Yuanjun Gong <ruc_gongyuanjun@163.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
 mt76x02_mac.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/mt76x02_mac.c b/mt76x02_mac.c
index 3e41d809..d5db6ffd 100644
--- a/mt76x02_mac.c
+++ b/mt76x02_mac.c
@@ -853,7 +853,8 @@ int mt76x02_mac_process_rx(struct mt76x02_dev *dev, struct sk_buff *skb,
 	if (WARN_ON_ONCE(len > skb->len))
 		return -EINVAL;
 
-	pskb_trim(skb, len);
+	if (pskb_trim(skb, len))
+		return -EINVAL;
 
 	status->chains = BIT(0);
 	signal = mt76x02_mac_get_rssi(dev, rxwi->rssi[0], 0);