Re: [PATCH 4/4] PCI/pwrctrl: generic: Fix leaking array from of_regulator_bulk_get_all()

[Bjorn Helgaas <helgaas@kernel.org>]

On Thu, Oct 01, 2026 at 11:46:11AM -0500, Bjorn Helgaas wrote:
> On Tue, Sep 29, 2026 at 02:05:49PM +0400, Alexey Charkov wrote:
> > of_regulator_bulk_get_all() allocates the consumers array and hands it to
> > the caller, who is expected to free it at an appropriate time.
> > PCI pwrctrl never did, leading to a memory leak.
> > 
> > Add an explicit kfree() for the consumers array.
> > 
> > Cc: stable@vger.kernel.org
> > Fixes: 75996c92f4de ("PCI/pwrctrl: Add pwrctrl driver for PCI slots")
> > Signed-off-by: Alexey Charkov <alchark@flipper.net>
> 
> Acked-by: Bjorn Helgaas <bhelgaas@google.com>
> 
> I assume this will be merged via a non-PCI tree.

After reading farther through my email, I see this was posted
separately, so I applied that to pci/pwrctrl for v7.4.

> > ---
> >  drivers/pci/pwrctrl/generic.c | 1 +
> >  1 file changed, 1 insertion(+)
> > 
> > diff --git a/drivers/pci/pwrctrl/generic.c b/drivers/pci/pwrctrl/generic.c
> > index d56171e0ee24..4b6cbbb52248 100644
> > --- a/drivers/pci/pwrctrl/generic.c
> > +++ b/drivers/pci/pwrctrl/generic.c
> > @@ -63,6 +63,7 @@ static void devm_slot_pwrctrl_release(void *data)
> >  	struct slot_pwrctrl *slot = data;
> >  
> >  	regulator_bulk_free(slot->num_supplies, slot->supplies);
> > +	kfree(slot->supplies);
> >  }
> >  
> >  static int slot_pwrctrl_probe(struct platform_device *pdev)
> > 
> > -- 
> > 2.55.0
> >