linux-kernel - Re: [PATCH] mux: mmio: fix regmap leak on probe failure

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Message-ID: <aYNxOL6vqCm_UL0V@hovoldconsulting.com>
Date: Wed, 4 Feb 2026 17:18:00 +0100
From: Johan Hovold <johan@...nel.org>
To: Peter Rosin <peda@...ntia.se>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	Andrew Davis <afd@...com>
Subject: Re: [PATCH] mux: mmio: fix regmap leak on probe failure

Hi Greg and Peter,

On Tue, Jan 27, 2026 at 04:56:15PM +0100, Johan Hovold wrote:
> On Thu, Nov 27, 2025 at 02:47:02PM +0100, Johan Hovold wrote:
> > The mmio regmap that may be allocated during probe is never freed.
> > 
> > Switch to using the device managed allocator so that the regmap is
> > released on probe failures (e.g. probe deferral) and on driver unbind.
> > 
> > Fixes: 61de83fd8256 ("mux: mmio: Do not use syscon helper to build regmap")
> > Cc: stable@...r.kernel.org	# 6.16
> > Cc: Andrew Davis <afd@...com>
> > Signed-off-by: Johan Hovold <johan@...nel.org>
> > ---
> 
> Can this one be picked up for 6.20?

This one has been sitting on the list for over two months now without
any comment from Peter.

I know there have been some issues in the past which patches for this
subsystem not being picked up, so perhaps you could just take this one
directly, Greg?

It's been reviewed by Andrew.

Johan