[PATCH v4 3/4] RDMA/cma: Deduplicate error flow in cma_validate_port()

[Chuck Lever <cel@xxxxxxxxxx>]

From: Chuck Lever <chuck.lever@xxxxxxxxxx>

Clean up to prepare for the addition of new logic.

Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
---
 drivers/infiniband/core/cma.c |   11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index 93a1c48d0c32..a1756ed1faa1 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -686,30 +686,31 @@ cma_validate_port(struct ib_device *device, u32 port,
 		  struct rdma_id_private *id_priv)
 {
 	struct rdma_dev_addr *dev_addr = &id_priv->id.route.addr.dev_addr;
+	const struct ib_gid_attr *sgid_attr = ERR_PTR(-ENODEV);
 	int bound_if_index = dev_addr->bound_dev_if;
-	const struct ib_gid_attr *sgid_attr;
 	int dev_type = dev_addr->dev_type;
 	struct net_device *ndev = NULL;
 
 	if (!rdma_dev_access_netns(device, id_priv->id.route.addr.dev_addr.net))
-		return ERR_PTR(-ENODEV);
+		goto out;
 
 	if ((dev_type == ARPHRD_INFINIBAND) && !rdma_protocol_ib(device, port))
-		return ERR_PTR(-ENODEV);
+		goto out;
 
 	if ((dev_type != ARPHRD_INFINIBAND) && rdma_protocol_ib(device, port))
-		return ERR_PTR(-ENODEV);
+		goto out;
 
 	if (dev_type == ARPHRD_ETHER && rdma_protocol_roce(device, port)) {
 		ndev = dev_get_by_index(dev_addr->net, bound_if_index);
 		if (!ndev)
-			return ERR_PTR(-ENODEV);
+			goto out;
 	} else {
 		gid_type = IB_GID_TYPE_IB;
 	}
 
 	sgid_attr = rdma_find_gid_by_port(device, gid, gid_type, port, ndev);
 	dev_put(ndev);
+out:
 	return sgid_attr;
 }