Re: [PATCH] pci/hotplug/pnv-php: Remove probable double put

From: Bjorn Helgaas
Date: Tue Sep 07 2021 - 07:24:11 EST


Make your subject line follow the previous convention.

Figure out if this is a "probable" or a real double put. If it's a
real double put, we should fix it. If it's only "probable," that
means we don't understand the problem yet.

On Tue, Sep 07, 2021 at 08:59:46AM +0000, Xu Wang wrote:
> Device node iterators put the previous value of the index variable,
> so an explicit put causes a double put.
>
> Signed-off-by: Xu Wang <vulab@xxxxxxxxxxx>
> ---
> drivers/pci/hotplug/pnv_php.c | 1 -
> 1 file changed, 1 deletion(-)
>
> diff --git a/drivers/pci/hotplug/pnv_php.c b/drivers/pci/hotplug/pnv_php.c
> index 04565162a449..ed4d1a2c3f22 100644
> --- a/drivers/pci/hotplug/pnv_php.c
> +++ b/drivers/pci/hotplug/pnv_php.c
> @@ -158,7 +158,6 @@ static void pnv_php_detach_device_nodes(struct device_node *parent)
> for_each_child_of_node(parent, dn) {
> pnv_php_detach_device_nodes(dn);
>
> - of_node_put(dn);
> of_detach_node(dn);
> }
> }
> --
> 2.17.1
>