[PATCH v2 07/13] PCI: apple: Fix missing OF node reference in apple_pcie_setup_port

[Marc Zyngier <maz@kernel.org>]

From: Hector Martin <marcan@marcan.st>

In the success path, we hang onto a reference to the node, so make sure
to grab one. The caller iterator puts our borrowed reference when we
return.

Signed-off-by: Hector Martin <marcan@marcan.st>
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Signed-off-by: Marc Zyngier <maz@kernel.org>
---
 drivers/pci/controller/pcie-apple.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/pci/controller/pcie-apple.c b/drivers/pci/controller/pcie-apple.c
index 63ceb5e3debaf..6271533f1b042 100644
--- a/drivers/pci/controller/pcie-apple.c
+++ b/drivers/pci/controller/pcie-apple.c
@@ -593,6 +593,9 @@ static int apple_pcie_setup_port(struct apple_pcie *pcie,
 	list_add_tail(&port->entry, &pcie->ports);
 	init_completion(&pcie->event);
 
+	/* In the success path, we keep a reference to np around */
+	of_node_get(np);
+
 	ret = apple_pcie_port_register_irqs(port);
 	WARN_ON(ret);
 
-- 
2.39.2