From da29e453dcb3aa7cabead7915f5f945d0add3a52 Mon Sep 17 00:00:00 2001 From: Allison Henderson Date: Thu, 12 Feb 2026 20:54:09 -0700 Subject: [PATCH] net/rds: rds_sendmsg should not discard payload_len Commit 3db6e0d172c9 ("rds: use RCU to synchronize work-enqueue with connection teardown") modifies rds_sendmsg to avoid enqueueing work while a tear down is in progress. However, it also changed the return value of rds_sendmsg to that of rds_send_xmit instead of the payload_len. This means the user may incorrectly receive errno values when it should have simply received a payload of 0 while the peer attempts a reconnections. So this patch corrects the teardown handling code to only use the out error path in that case, thus restoring the original payload_len return value. Fixes: 3db6e0d172c9 ("rds: use RCU to synchronize work-enqueue with connection teardown") Reviewed-by: Simon Horman Signed-off-by: Allison Henderson Link: https://patch.msgid.link/20260213035409.1963391-1-achender@kernel.org Signed-off-by: Paolo Abeni --- net/rds/send.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/net/rds/send.c b/net/rds/send.c index 6e96f108473e..a1039e422a38 100644 --- a/net/rds/send.c +++ b/net/rds/send.c @@ -1431,9 +1431,11 @@ int rds_sendmsg(struct socket *sock, struct msghdr *msg, size_t payload_len) else queue_delayed_work(cpath->cp_wq, &cpath->cp_send_w, 1); rcu_read_unlock(); + + if (ret) + goto out; } - if (ret) - goto out; + rds_message_put(rm); for (ind = 0; ind < vct.indx; ind++) -- 2.30.2