[PATCH] mailbox: zynqmp-ipi-mailbox: Add of_node_put() before goto

[Nishka Dasgupta]

Each iteration of for_each_available_child_of_node puts the previous
node, but in the case of a goto from the middle of the loop, there is
no put, thus causing a memory leak. Hence add an of_node_put before the
goto.
Issue found with Coccinelle.

Signed-off-by: Nishka Dasgupta <nishkadg.li...@gmail.com>
---
 drivers/mailbox/zynqmp-ipi-mailbox.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mailbox/zynqmp-ipi-mailbox.c 
b/drivers/mailbox/zynqmp-ipi-mailbox.c
index 86887c9a349a..bd80d4c10ec2 100644
--- a/drivers/mailbox/zynqmp-ipi-mailbox.c
+++ b/drivers/mailbox/zynqmp-ipi-mailbox.c
@@ -661,6 +661,7 @@ static int zynqmp_ipi_probe(struct platform_device *pdev)
                if (ret) {
                        dev_err(dev, "failed to probe subdev.\n");
                        ret = -EINVAL;
+                       of_node_put(nc);
                        goto free_mbox_dev;
                }
                mbox++;
-- 
2.19.1