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ethernet: atheros: fix return value check in atl1c_tso_csum()

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in atl1c_tso_csum, it should check the return value of pskb_trim(),
and return an error code if an unexpected value is returned
by pskb_trim().

Signed-off-by: Yuanjun Gong <ruc_gongyuanjun@163.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yuanjun Gong 2023-07-20 22:42:08 +08:00 committed by David S. Miller
parent 94d166c531
commit 8d01da0a1d
1 changed files with 5 additions and 2 deletions
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7
drivers/net/ethernet/atheros/atl1c/atl1c_main.c
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@ -2094,8 +2094,11 @@ static int atl1c_tso_csum(struct atl1c_adapter *adapter,
real_len = (((unsigned char *)ip_hdr(skb) - skb->data)
+ ntohs(ip_hdr(skb)->tot_len));
if (real_len < skb->len)
pskb_trim(skb, real_len);
if (real_len < skb->len) {
err = pskb_trim(skb, real_len);
if (err)
return err;
}
hdr_len = skb_tcp_all_headers(skb);
if (unlikely(skb->len == hdr_len)) {