linux-kernel - [PATCH 3.16 062/305] IB/mthca: Fix error return code in __mthca_init

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Date:   Sun, 03 Feb 2019 14:45:08 +0100
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org, Denis Kirjanov <kda@...ux-powerpc.org>,
        "Wei Yongjun" <weiyongjun1@...wei.com>,
        "Jason Gunthorpe" <jgg@...lanox.com>
Subject: [PATCH 3.16 062/305] IB/mthca: Fix error return code in
 __mthca_init_one()

3.16.63-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Wei Yongjun <weiyongjun1@...wei.com>

commit 39f2495618c5e980d2873ea3f2d1877dd253e07a upstream.

Fix to return a negative error code from the mthca_cmd_init() error
handling case instead of 0, as done elsewhere in this function.

Fixes: 80fd8238734c ("[PATCH] IB/mthca: Encapsulate command interface init")
Signed-off-by: Wei Yongjun <weiyongjun1@...wei.com>
Signed-off-by: Jason Gunthorpe <jgg@...lanox.com>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/infiniband/hw/mthca/mthca_main.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/infiniband/hw/mthca/mthca_main.c
+++ b/drivers/infiniband/hw/mthca/mthca_main.c
@@ -989,7 +989,8 @@ static int __mthca_init_one(struct pci_d
 		goto err_free_dev;
 	}
 
-	if (mthca_cmd_init(mdev)) {
+	err = mthca_cmd_init(mdev);
+	if (err) {
 		mthca_err(mdev, "Failed to init command interface, aborting.\n");
 		goto err_free_dev;
 	}