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| author | Miaoqian Lin <linmq006@gmail.com> | 2022-06-05 09:51:23 +0400 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2022-06-08 15:26:24 -0500 |
| commit | f030304fdeb87ec8f1b518c73703214aec6cc24a (patch) | |
| tree | bd2822b77ea6c78940291ef26acd402218447fbd /drivers/pci/controller/pcie-microchip-host.c | |
| parent | f2906aa863381afb0015a9eb7fefad885d4e5a56 (diff) | |
| download | linux-f030304fdeb87ec8f1b518c73703214aec6cc24a.tar.bz2 | |
PCI: microchip: Fix refcount leak in mc_pcie_init_irq_domains()
of_get_next_child() returns a node pointer with refcount incremented, so we
should use of_node_put() on it when we don't need it anymore.
mc_pcie_init_irq_domains() only calls of_node_put() in the normal path,
missing it in some error paths. Add missing of_node_put() to avoid
refcount leak.
Fixes: 6f15a9c9f941 ("PCI: microchip: Add Microchip PolarFire PCIe controller driver")
Link: https://lore.kernel.org/r/20220605055123.59127-1-linmq006@gmail.com
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'drivers/pci/controller/pcie-microchip-host.c')
| -rw-r--r-- | drivers/pci/controller/pcie-microchip-host.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/pci/controller/pcie-microchip-host.c b/drivers/pci/controller/pcie-microchip-host.c index dd5dba419047..7263d175b5ad 100644 --- a/drivers/pci/controller/pcie-microchip-host.c +++ b/drivers/pci/controller/pcie-microchip-host.c @@ -904,6 +904,7 @@ static int mc_pcie_init_irq_domains(struct mc_pcie *port) &event_domain_ops, port); if (!port->event_domain) { dev_err(dev, "failed to get event domain\n"); + of_node_put(pcie_intc_node); return -ENOMEM; } @@ -913,6 +914,7 @@ static int mc_pcie_init_irq_domains(struct mc_pcie *port) &intx_domain_ops, port); if (!port->intx_domain) { dev_err(dev, "failed to get an INTx IRQ domain\n"); + of_node_put(pcie_intc_node); return -ENOMEM; } |