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")
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: YueHaibing <[email protected]>
Acked-by: Leon Romanovsky <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>

diff --git a/drivers/infiniband/hw/mlx5/devx.c b/drivers/infiniband/hw/mlx5/devx.c
index ebc2a4355fa5a6d9eec872474d4c813ef3061750..de3c2fc6f361c1356443327754b46d3a2ae8c480 100644 (file)
--- 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);