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From:   Sasha Levin <sashal@kernel.org>
To:     linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc:     Dan Carpenter <dan.carpenter@oracle.com>,
        Jason Gunthorpe <jgg@mellanox.com>,
        Sasha Levin <sashal@kernel.org>, linux-rdma@vger.kernel.org
Subject: [PATCH AUTOSEL 4.19 103/219] IB/qib: Fix an error code in qib_sdma_verbs_send()
Date:   Fri, 22 Nov 2019 00:47:15 -0500
Message-Id: <20191122054911.1750-96-sashal@kernel.org>
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From: Dan Carpenter <dan.carpenter@oracle.com>

[ Upstream commit 5050ae5fa3d54c8e83e1e447cc7e3591110a7f57 ]

We accidentally return success on this error path.

Fixes: f931551bafe1 ("IB/qib: Add new qib driver for QLogic PCIe InfiniBand adapters")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/hw/qib/qib_sdma.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/qib/qib_sdma.c b/drivers/infiniband/hw/qib/qib_sdma.c
index d0723d4aef5c9..7424e88b0d918 100644
--- a/drivers/infiniband/hw/qib/qib_sdma.c
+++ b/drivers/infiniband/hw/qib/qib_sdma.c
@@ -576,8 +576,10 @@ int qib_sdma_verbs_send(struct qib_pportdata *ppd,
 		dw = (len + 3) >> 2;
 		addr = dma_map_single(&ppd->dd->pcidev->dev, sge->vaddr,
 				      dw << 2, DMA_TO_DEVICE);
-		if (dma_mapping_error(&ppd->dd->pcidev->dev, addr))
+		if (dma_mapping_error(&ppd->dd->pcidev->dev, addr)) {
+			ret = -ENOMEM;
 			goto unmap;
+		}
 		sdmadesc[0] = 0;
 		make_sdma_desc(ppd, sdmadesc, (u64) addr, dw, dwoffset);
 		/* SDmaUseLargeBuf has to be set in every descriptor */
-- 
2.20.1