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From: "Markus Schneider-Pargmann" <msp@baylibre.com>
To: "Marc Kleine-Budde" <mkl@pengutronix.de>,
	"Chandrasekar Ramakrishnan" <rcsekar@samsung.com>,
	"Vincent Mailhol" <mailhol.vincent@wanadoo.fr>,
	"Patrik Flykt" <patrik.flykt@linux.intel.com>,
	"Dong Aisheng" <b29396@freescale.com>,
	"Fengguang Wu" <fengguang.wu@intel.com>,
	"Varka Bhadram" <varkabhadram@gmail.com>,
	"Wu Bo" <wubo.oduw@gmail.com>,
	"Philipp Zabel" <p.zabel@pengutronix.de>
Cc: <linux-can@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<kernel@pengutronix.de>
Subject: Re: [PATCH 1/7] can: m_can: m_can_plat_remove(): add missing pm_runtime_disable()
Date: Tue, 19 Aug 2025 10:22:45 +0200	[thread overview]
Message-ID: <DC69CAZD1X5T.XGQPHLBKGPTP@baylibre.com> (raw)
In-Reply-To: <20250812-m_can-fix-state-handling-v1-1-b739e06c0a3b@pengutronix.de>

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On Tue Aug 12, 2025 at 7:36 PM CEST, Marc Kleine-Budde wrote:
> Commit 227619c3ff7c ("can: m_can: move runtime PM enable/disable to
> m_can_platform") moved the PM runtime enable from the m_can core
> driver into the m_can_platform.
>
> That patch forgot to move the pm_runtime_disable() to
> m_can_plat_remove(), so that unloading the m_can_platform driver
> causes an "Unbalanced pm_runtime_enable!" error message.
>
> Add the missing pm_runtime_disable() to m_can_plat_remove() to fix the
> problem.
>
> Cc: Patrik Flykt <patrik.flykt@linux.intel.com>
> Fixes: 227619c3ff7c ("can: m_can: move runtime PM enable/disable to m_can_platform")
> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

Reviewed-by: Markus Schneider-Pargmann <msp@baylibre.com>

> ---
>  drivers/net/can/m_can/m_can_platform.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/net/can/m_can/m_can_platform.c b/drivers/net/can/m_can/m_can_platform.c
> index b832566efda0..057eaa7b8b4b 100644
> --- a/drivers/net/can/m_can/m_can_platform.c
> +++ b/drivers/net/can/m_can/m_can_platform.c
> @@ -180,7 +180,7 @@ static void m_can_plat_remove(struct platform_device *pdev)
>  	struct m_can_classdev *mcan_class = &priv->cdev;
>  
>  	m_can_class_unregister(mcan_class);
> -
> +	pm_runtime_disable(mcan_class->dev);
>  	m_can_class_free_dev(mcan_class->net);
>  }
>  


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  reply	other threads:[~2025-08-19  8:22 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-08-12 17:36 [PATCH 0/7] can: m_can: fix pm_runtime and CAN state handling Marc Kleine-Budde
2025-08-12 17:36 ` [PATCH 1/7] can: m_can: m_can_plat_remove(): add missing pm_runtime_disable() Marc Kleine-Budde
2025-08-19  8:22   ` Markus Schneider-Pargmann [this message]
2025-08-12 17:36 ` [PATCH 2/7] can: m_can: m_can_rx_handler(): only handle active interrupts Marc Kleine-Budde
2025-08-19  8:29   ` Markus Schneider-Pargmann
2025-09-09 14:07     ` Marc Kleine-Budde
2025-08-12 17:36 ` [PATCH 3/7] can: m_can: m_can_handle_state_errors(): fix CAN state transition to Error Active Marc Kleine-Budde
2025-08-20  8:49   ` Markus Schneider-Pargmann
2025-08-20  9:09     ` Markus Schneider-Pargmann
2025-09-09 14:28       ` Marc Kleine-Budde
2025-09-09 14:31         ` Marc Kleine-Budde
2025-09-09 14:38           ` Marc Kleine-Budde
2025-09-09 14:25     ` Marc Kleine-Budde
2025-08-12 17:36 ` [PATCH 4/7] can: m_can: m_can_chip_config(): bring up interface in correct state Marc Kleine-Budde
2025-08-20  9:00   ` Markus Schneider-Pargmann
2025-09-09 14:48     ` Marc Kleine-Budde
2025-08-12 17:36 ` [PATCH 5/7] can: m_can: fix CAN state in system PM Marc Kleine-Budde
2025-08-20  9:06   ` Markus Schneider-Pargmann
2025-08-12 17:36 ` [PATCH 6/7] can: m_can: m_can_get_berr_counter(): don't wake up controller if interface is down Marc Kleine-Budde
2025-08-12 17:36 ` [PATCH 7/7] can: m_can: add optional support for reset Marc Kleine-Budde
2025-08-13  8:17   ` Philipp Zabel
2025-08-13  8:34     ` Marc Kleine-Budde
2025-08-13  8:44       ` Marc Kleine-Budde
2025-08-13  8:17 ` [PATCH 0/7] can: m_can: fix pm_runtime and CAN state handling Philipp Zabel
2025-08-13  9:06   ` Marc Kleine-Budde

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