On Sat, Jun 23, 2018 at 05:14:59PM +0200, Nicholas Mc Guire wrote:
> The call to of_get_next_child() returns a node pointer with refcount
> incremented thus it must be explicitly decremented here in the error
> path and after the last usage.
>
> Signed-off-by: Nicholas Mc Guire <[email protected]>
> Fixes: commit d3c68e0a7e34 ("PCI: faraday: Add Faraday Technology FTPCI100
> PCI Host Bridge driver")
> ---
>
> Patch found my experimental coccinelle script
>
> Patch was compile tested with: gemini_defconfig (implies
> CONFIG_PCI_FTPCI100=y)
>
> Patch is against 4.18-rc1 (localversion-next is next-20180621)
>
> drivers/pci/controller/pci-ftpci100.c | 2 ++
> 1 file changed, 2 insertions(+)
Applied to pci/controller-fixes to be tentatively merged for -rc4,
thanks.
Lorenzo
> diff --git a/drivers/pci/controller/pci-ftpci100.c
> b/drivers/pci/controller/pci-ftpci100.c
> index a1ebe9e..20bb256 100644
> --- a/drivers/pci/controller/pci-ftpci100.c
> +++ b/drivers/pci/controller/pci-ftpci100.c
> @@ -355,11 +355,13 @@ static int faraday_pci_setup_cascaded_irq(struct
> faraday_pci *p)
> irq = of_irq_get(intc, 0);
> if (irq <= 0) {
> dev_err(p->dev, "failed to get parent IRQ\n");
> + of_node_put(intc);
> return irq ?: -EINVAL;
> }
>
> p->irqdomain = irq_domain_add_linear(intc, PCI_NUM_INTX,
> &faraday_pci_irqdomain_ops, p);
> + of_node_put(intc);
> if (!p->irqdomain) {
> dev_err(p->dev, "failed to create Gemini PCI IRQ domain\n");
> return -EINVAL;
> --
> 2.1.4
>
