[PATCH 4.9 193/240] PCI: Release OF node in pci_scan_device()s error path

Greg Kroah-Hartman
2021-05-20T11:21:20Z

From: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

[ 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@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/pci/probe.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 19658873b4c1..ddf5ba63b195 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -1694,6 +1694,7 @@ static struct pci_dev *pci_scan_device(struct pci_bus *bus, int devfn)
pci_set_of_node(dev);

if (pci_setup_device(dev)) {
+ pci_release_of_node(dev);
pci_bus_put(dev->bus);
kfree(dev);
return NULL;
--
2.30.2