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drivers: net: fix return value check in emac_tso_csum()

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in emac_tso_csum(), return an error code if an unexpected value
is returned by pskb_trim().

Signed-off-by: Yuanjun Gong <ruc_gongyuanjun@163.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yuanjun Gong 2023-07-17 22:46:21 +08:00 committed by David S. Miller
parent 4258faa130
commit 78a93c3100
1 changed files with 5 additions and 2 deletions
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7
drivers/net/ethernet/qualcomm/emac/emac-mac.c
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@ -1260,8 +1260,11 @@ static int emac_tso_csum(struct emac_adapter *adpt,
if (skb->protocol == htons(ETH_P_IP)) {
u32 pkt_len = ((unsigned char *)ip_hdr(skb) - skb->data)
+ ntohs(ip_hdr(skb)->tot_len);
if (skb->len > pkt_len)
pskb_trim(skb, pkt_len);
if (skb->len > pkt_len) {
ret = pskb_trim(skb, pkt_len);
if (unlikely(ret))
return ret;
}
}
hdr_len = skb_tcp_all_headers(skb);