From 93ae4ded2abe8fce6183bcb200d647494ce40549 Mon Sep 17 00:00:00 2001 From: "Michael J. Ruhl" Date: Mon, 10 Sep 2018 09:39:28 -0700 Subject: [PATCH] IB/hfi1: Missing return value in error path for user sdma [ Upstream commit 2bf4b33f83dfe521c4c7c407b6b150aeec04d69c ] If the set_txreq_header_agh() function returns an error, the exit path is chosen. In this path, the code fails to set the return value. This will cause the caller to not realize an error has occurred. Set the return value correctly in the error path. Signed-off-by: Michael J. Ruhl Signed-off-by: Dennis Dalessandro Signed-off-by: Jason Gunthorpe Signed-off-by: Sasha Levin --- drivers/infiniband/hw/hfi1/user_sdma.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/hfi1/user_sdma.c b/drivers/infiniband/hw/hfi1/user_sdma.c index cbff746d9e9d..684a298e1503 100644 --- a/drivers/infiniband/hw/hfi1/user_sdma.c +++ b/drivers/infiniband/hw/hfi1/user_sdma.c @@ -856,8 +856,10 @@ static int user_sdma_send_pkts(struct user_sdma_request *req, unsigned maxpkts) changes = set_txreq_header_ahg(req, tx, datalen); - if (changes < 0) + if (changes < 0) { + ret = changes; goto free_tx; + } } } else { ret = sdma_txinit(&tx->txreq, 0, sizeof(req->hdr) +