[PATCH] RDMA/usnic: Fix memleak in find_free_vf_and_create_qp_grp

[Dinghao Liu]

If usnic_ib_qp_grp_create() fails at the first call, dev_list
will not be freed on error, which leads to memleak.

Signed-off-by: Dinghao Liu <dinghao....@zju.edu.cn>
---
 drivers/infiniband/hw/usnic/usnic_ib_verbs.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/infiniband/hw/usnic/usnic_ib_verbs.c 
b/drivers/infiniband/hw/usnic/usnic_ib_verbs.c
index 38a37770c016..3705c6b8b223 100644
--- a/drivers/infiniband/hw/usnic/usnic_ib_verbs.c
+++ b/drivers/infiniband/hw/usnic/usnic_ib_verbs.c
@@ -214,6 +214,7 @@ find_free_vf_and_create_qp_grp(struct usnic_ib_dev 
*us_ibdev,
 
                }
                usnic_uiom_free_dev_list(dev_list);
+               dev_list = NULL;
        }
 
        /* Try to find resources on an unused vf */
@@ -239,6 +240,8 @@ find_free_vf_and_create_qp_grp(struct usnic_ib_dev 
*us_ibdev,
 qp_grp_check:
        if (IS_ERR_OR_NULL(qp_grp)) {
                usnic_err("Failed to allocate qp_grp\n");
+               if (usnic_ib_share_vf)
+                       usnic_uiom_free_dev_list(dev_list);
                return ERR_PTR(qp_grp ? PTR_ERR(qp_grp) : -ENOMEM);
        }
        return qp_grp;
-- 
2.17.1