Commit d65c5ef9 authored Jul 20, 2023 by Yuanjun Gong Committed by Greg Kroah-Hartman Sep 23, 2023

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



[ 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>

parent ea95a011

drivers/net/ethernet/atheros/atl1c/atl1c_main.c

+5 −2

Original line number	Diff line number	Diff line
		@@ -1989,8 +1989,11 @@ 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_transport_offset(skb) + tcp_hdrlen(skb));
		if (unlikely(skb->len == hdr_len)) {