wifi: mt76: mt76x02: 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>

diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c b/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c
index 3e41d809ade39c0e7c0698cec004e638a56a28d8..d5db6ffd6d365fd75e92057bc46f1296d4d312df 100644 (file)
--- a/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c
+++ b/drivers/net/wireless/mediatek/mt76/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);