[why]
xa_insert is failed, so caller of subscribe_event_xa_alloc
cannot call other function to free obj_event. Therefore,
Resource release is needed on the error handling path to
prevent memory leak.
[how]
Fix this by adding kfree on the error handling path.
Fixes: 7597385 ("IB/mlx5: Enable subscription for device events over DEVX")
Signed-off-by: Yongzhi Liu <lyz_cs@xxxxxxxxxx>
---
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 08b7f6b..15c0884 100644
--- a/drivers/infiniband/hw/mlx5/devx.c
+++ b/drivers/infiniband/hw/mlx5/devx.c
@@ -1886,8 +1886,10 @@ subscribe_event_xa_alloc(struct mlx5_devx_event_table *devx_event_table,
key_level2,
obj_event,
GFP_KERNEL);
- if (err)
+ if (err) {
+ kfree(obj_event);
return err;
+ }
INIT_LIST_HEAD(&obj_event->obj_sub_list);
}
--
2.7.4
