[PATCH 5.12 135/363] PCI: Release OF node in pci_scan_device()s error path

From: Greg Kroah-Hartman
Date: Mon May 17 2021 - 10:16:37 EST

From: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>

[ Upstream commit c99e755a4a4c165cad6effb39faffd0f3377c02d ]

In pci_scan_device(), if pci_setup_device() fails for any reason, the code
will not release device's of_node by calling pci_release_of_node(). Fix
that by calling the release function.

Fixes: 98d9f30c820d ("pci/of: Match PCI devices to OF nodes dynamically")
Link: https://lore.kernel.org/r/20210124232826.1879-1-dmitry.baryshkov@xxxxxxxxxx
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
Signed-off-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
Reviewed-by: Leon Romanovsky <leonro@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
drivers/pci/probe.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 953f15abc850..be51670572fa 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -2353,6 +2353,7 @@ static struct pci_dev *pci_scan_device(struct pci_bus *bus, int devfn)

if (pci_setup_device(dev)) {
+ pci_release_of_node(dev);
return NULL;