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

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[ Upstream commit 8d01da0a1db237c44c92859ce3612df7af8d3a53 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Yuanjun Gong
2023-07-20 22:42:08 +08:00
committed by Greg Kroah-Hartman
parent 16c1134267
commit b7cd83cfff
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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@@ -1987,8 +1987,11 @@ static int atl1c_tso_csum(struct atl1c_adapter *adapter,
real_len = (((unsigned char *)ip_hdr(skb) - skb->data) real_len = (((unsigned char *)ip_hdr(skb) - skb->data)
+ ntohs(ip_hdr(skb)->tot_len)); + ntohs(ip_hdr(skb)->tot_len));
if (real_len < skb->len) if (real_len < skb->len) {
pskb_trim(skb, real_len); err = pskb_trim(skb, real_len);
if (err)
return err;
}
hdr_len = (skb_transport_offset(skb) + tcp_hdrlen(skb)); hdr_len = (skb_transport_offset(skb) + tcp_hdrlen(skb));
if (unlikely(skb->len == hdr_len)) { if (unlikely(skb->len == hdr_len)) {