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From: Johan Hovold <johan@kernel.org>
To: Neil Armstrong <neil.armstrong@linaro.org>
Cc: Kevin Hilman <khilman@baylibre.com>,
	Jerome Brunet <jbrunet@baylibre.com>,
	Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
	Carlo Caione <ccaione@baylibre.com>,
	linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org,
	stable@vger.kernel.org
Subject: Re: [PATCH] firmware: meson_sm: fix device leak at probe
Date: Wed, 27 Aug 2025 11:50:39 +0200	[thread overview]
Message-ID: <aK7U7-ebrPcxwEIj@hovoldconsulting.com> (raw)
In-Reply-To: <20250725074019.8765-1-johan@kernel.org>

On Fri, Jul 25, 2025 at 09:40:19AM +0200, Johan Hovold wrote:
> Make sure to drop the reference to the secure monitor device taken by
> of_find_device_by_node() when looking up its driver data on behalf of
> other drivers (e.g. during probe).
> 
> Note that holding a reference to the platform device does not prevent
> its driver data from going away so there is no point in keeping the
> reference after the helper returns.
> 
> Fixes: 8cde3c2153e8 ("firmware: meson_sm: Rework driver as a proper platform driver")
> Cc: stable@vger.kernel.org	# 5.5
> Cc: Carlo Caione <ccaione@baylibre.com>
> Signed-off-by: Johan Hovold <johan@kernel.org>

Can someone pick this one up (along with the compile-test patch)?

Johan

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WARNING: multiple messages have this Message-ID (diff)
From: Johan Hovold <johan@kernel.org>
To: Neil Armstrong <neil.armstrong@linaro.org>
Cc: Kevin Hilman <khilman@baylibre.com>,
	Jerome Brunet <jbrunet@baylibre.com>,
	Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
	Carlo Caione <ccaione@baylibre.com>,
	linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org,
	stable@vger.kernel.org
Subject: Re: [PATCH] firmware: meson_sm: fix device leak at probe
Date: Wed, 27 Aug 2025 11:50:39 +0200	[thread overview]
Message-ID: <aK7U7-ebrPcxwEIj@hovoldconsulting.com> (raw)
In-Reply-To: <20250725074019.8765-1-johan@kernel.org>

On Fri, Jul 25, 2025 at 09:40:19AM +0200, Johan Hovold wrote:
> Make sure to drop the reference to the secure monitor device taken by
> of_find_device_by_node() when looking up its driver data on behalf of
> other drivers (e.g. during probe).
> 
> Note that holding a reference to the platform device does not prevent
> its driver data from going away so there is no point in keeping the
> reference after the helper returns.
> 
> Fixes: 8cde3c2153e8 ("firmware: meson_sm: Rework driver as a proper platform driver")
> Cc: stable@vger.kernel.org	# 5.5
> Cc: Carlo Caione <ccaione@baylibre.com>
> Signed-off-by: Johan Hovold <johan@kernel.org>

Can someone pick this one up (along with the compile-test patch)?

Johan

  parent reply	other threads:[~2025-08-27 11:07 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-07-25  7:40 [PATCH] firmware: meson_sm: fix device leak at probe Johan Hovold
2025-07-25  7:40 ` Johan Hovold
2025-08-02 10:02 ` Martin Blumenstingl
2025-08-02 10:02   ` Martin Blumenstingl
2025-08-03 10:42 ` Markus Elfring
2025-08-03 10:42   ` Markus Elfring
2025-08-27  9:50 ` Johan Hovold [this message]
2025-08-27  9:50   ` Johan Hovold
2025-09-01 12:20   ` Neil Armstrong
2025-09-01 12:20     ` Neil Armstrong
2025-09-04 13:28 ` Neil Armstrong
2025-09-04 13:28   ` Neil Armstrong

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