linux-kernel - [PATCH -next] IB/mlx5: Add missing error code

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Date:   Mon, 22 Feb 2021 16:25:03 +0800
From:   YueHaibing <yuehaibing@...wei.com>
To:     <leon@...nel.org>, <dledford@...hat.com>, <jgg@...pe.ca>,
        <yishaih@...dia.com>
CC:     <linux-rdma@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        YueHaibing <yuehaibing@...wei.com>
Subject: [PATCH -next] IB/mlx5: Add missing error code

Set err to -ENOMEM if kzalloc fails instead of 0.

Fixes: 759738537142 ("IB/mlx5: Enable subscription for device events over DEVX")
Signed-off-by: YueHaibing <yuehaibing@...wei.com>
---
 drivers/infiniband/hw/mlx5/devx.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/mlx5/devx.c b/drivers/infiniband/hw/mlx5/devx.c
index ebc2a4355fa5..3c8e6a25465d 100644
--- a/drivers/infiniband/hw/mlx5/devx.c
+++ b/drivers/infiniband/hw/mlx5/devx.c
@@ -2073,8 +2073,10 @@ static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_SUBSCRIBE_EVENT)(
 
 		num_alloc_xa_entries++;
 		event_sub = kzalloc(sizeof(*event_sub), GFP_KERNEL);
-		if (!event_sub)
+		if (!event_sub) {
+			err = -ENOMEM
 			goto err;
+		}
 
 		list_add_tail(&event_sub->event_list, &sub_list);
 		uverbs_uobject_get(&ev_file->uobj);
-- 
2.20.1