[PATCH] cxl: Fix refcount leak in cxl_calc_capp_routing

[Miaoqian Lin]

of_get_next_parent() returns a node pointer with refcount incremented,
we should use of_node_put() on it when not need anymore.
This function only calls of_node_put() in normal path,
missing it in the error path.
Add missing of_node_put() to avoid refcount leak.

Fixes: f24be42aab37 ("cxl: Add psl9 specific code")
Signed-off-by: Miaoqian Lin <linmq006 at gmail.com>
---
 drivers/misc/cxl/pci.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/misc/cxl/pci.c b/drivers/misc/cxl/pci.c
index 3de0aea62ade..62385a529d86 100644
--- a/drivers/misc/cxl/pci.c
+++ b/drivers/misc/cxl/pci.c
@@ -387,6 +387,7 @@ int cxl_calc_capp_routing(struct pci_dev *dev, u64 *chipid,
 	rc = get_phb_index(np, phb_index);
 	if (rc) {
 		pr_err("cxl: invalid phb index\n");
+		of_node_put(np);
 		return rc;
 	}
 
-- 
2.25.1