Re: [PATCH v2] mfd: sm501: fix reference leak on failed device registration

From: Lee Jones

Date: Tue May 05 2026 - 11:00:21 EST


On Mon, 04 May 2026, Miquel Raynal wrote:

> On Mon, 04 May 2026 15:48:41 +0300, Valery Borovsky wrote:
> > When platform_device_register() fails in sm501_register_device(), the
> > platform device allocated by sm501_create_subdev() has its struct device
> > initialized by device_initialize() inside platform_device_register(). The
> > error path logs the error but returns without dropping the device reference,
> > leaking the memory allocated by sm501_create_subdev():
> >
> > sm501_register_device()
> > -> platform_device_register(pdev)
> > -> device_initialize(&pdev->dev) /* kref = 1 */
> > -> platform_device_add(pdev) /* fails */
> > <- dev_err() called, kref still 1, sm501_device_release never called
> >
> > [...]
>
> Applied to mtd/next, thanks!

I think you misread the subject line.

> [1/1] mfd: sm501: fix reference leak on failed device registration
> commit: faa9bba3fe2f37e7dcb26d4501d890fbfd7df160
>
> Patche(s) should be available on mtd/linux.git and will be
> part of the next PR (provided that no robot complains by then).

Please remove this from your tree. It should be handled via M[F]D.

Thanks.

--
Lee Jones