[lvc-project] [PATCH] tcp_bpf: propagate error code in tcp_bpf_sendmsg()

[Dmitry Antipov]

In tcp_bpf_sendmsg(), propagate error code possibly returned
by sk_msg_memcopy_from_iter() so that the former can handle
it properly at 'out_err' label.

Assisted-by: Sashiko:[unknown LLM model]
Fixes: 5153a75ef34b ("tcp_bpf: Fix copied value in tcp_bpf_sendmsg")
Signed-off-by: Dmitry Antipov <dmantipov at yandex.ru>
---
 net/ipv4/tcp_bpf.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/ipv4/tcp_bpf.c b/net/ipv4/tcp_bpf.c
index 2e234d155b5e..0ce583f68d3b 100644
--- a/net/ipv4/tcp_bpf.c
+++ b/net/ipv4/tcp_bpf.c
@@ -581,6 +581,7 @@ static int tcp_bpf_sendmsg(struct sock *sk, struct msghdr *msg, size_t size)
 					       copy);
 		if (ret < 0) {
 			sk_msg_trim(sk, msg_tx, osize);
+			err = ret;
 			goto out_err;
 		}
 
-- 
2.56.0