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From: Dmitry Osipenko <digetx@gmail.com>
To: Sowjanya Komatineni <skomatineni@nvidia.com>,
	thierry.reding@gmail.com, jonathanh@nvidia.com,
	frankc@nvidia.com, hverkuil@xs4all.nl, sakari.ailus@iki.fi,
	robh+dt@kernel.org, helen.koike@collabora.com
Cc: sboyd@kernel.org, gregkh@linuxfoundation.org,
	linux-media@vger.kernel.org, devicetree@vger.kernel.org,
	linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-i2c@vger.kernel.org
Subject: Re: [RFC PATCH v4 03/14] i2c: tegra: Fix the error path in tegra_i2c_runtime_resume
Date: Mon, 27 Jul 2020 02:41:03 +0300
Message-ID: <4a9f448b-d7d2-d44a-3e68-cfdb331b8847@gmail.com> (raw)
In-Reply-To: <1595548272-9809-4-git-send-email-skomatineni@nvidia.com>

24.07.2020 02:51, Sowjanya Komatineni пишет:
> tegra_i2c_runtime_resume does not disable prior enabled clocks
> properly.
> 
> This patch fixes it.
> 
> Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com>
> ---
>  drivers/i2c/busses/i2c-tegra.c | 11 ++++++++---
>  1 file changed, 8 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c
> index c91307b9..7b93c45 100644
> --- a/drivers/i2c/busses/i2c-tegra.c
> +++ b/drivers/i2c/busses/i2c-tegra.c
> @@ -665,18 +665,23 @@ static int __maybe_unused tegra_i2c_runtime_resume(struct device *dev)
>  	ret = clk_enable(i2c_dev->slow_clk);
>  	if (ret < 0) {
>  		dev_err(dev, "failed to enable slow clock: %d\n", ret);
> -		return ret;
> +		goto disable_fast_clk;
>  	}
>  
>  	ret = clk_enable(i2c_dev->div_clk);
>  	if (ret < 0) {
>  		dev_err(i2c_dev->dev,
>  			"Enabling div clk failed, err %d\n", ret);
> -		clk_disable(i2c_dev->fast_clk);
> -		return ret;
> +		goto disable_slow_clk;
>  	}
>  
>  	return 0;
> +
> +disable_slow_clk:
> +	clk_disable(i2c_dev->slow_clk);
> +disable_fast_clk:
> +	clk_disable(i2c_dev->fast_clk);
> +	return ret;
>  }
>  
>  static int __maybe_unused tegra_i2c_runtime_suspend(struct device *dev)
> 
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>

  reply index

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-23 23:50 [RFC PATCH v4 00/14] Support for Tegra video capture from external sensor Sowjanya Komatineni
2020-07-23 23:50 ` [RFC PATCH v4 01/14] i2c: tegra: Don't mark VI I2C as IRQ safe runtime PM Sowjanya Komatineni
2020-07-26 23:30   ` Dmitry Osipenko
2020-07-23 23:51 ` [RFC PATCH v4 03/14] i2c: tegra: Fix the error path in tegra_i2c_runtime_resume Sowjanya Komatineni
2020-07-26 23:41   ` Dmitry Osipenko [this message]
2020-07-23 23:51 ` [RFC PATCH v4 04/14] i2c: tegra: Fix runtime resume to re-init VI I2C Sowjanya Komatineni
2020-07-26 23:53   ` Dmitry Osipenko
2020-07-27 20:58     ` Sowjanya Komatineni
2020-07-23 23:51 ` [RFC PATCH v4 05/14] i2c: tegra: Avoid tegra_i2c_init_dma() for Tegra210 vi i2c Sowjanya Komatineni
2020-07-26 23:57   ` Dmitry Osipenko
2020-07-23 23:51 ` [RFC PATCH v4 06/14] media: tegra-video: Fix channel format alignment Sowjanya Komatineni
2020-07-23 23:51 ` [RFC PATCH v4 07/14] media: tegra-video: Enable TPG based on kernel config Sowjanya Komatineni
     [not found] ` <1595548272-9809-1-git-send-email-skomatineni-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2020-07-23 23:51   ` [RFC PATCH v4 02/14] i2c: tegra: Remove NULL pointer check before clk_enable/disable/prepare/unprepare Sowjanya Komatineni
2020-07-23 23:51   ` [RFC PATCH v4 08/14] media: tegra-video: Update format lookup to offset based Sowjanya Komatineni
2020-07-23 23:51   ` [RFC PATCH v4 09/14] dt-bindings: tegra: Update VI and CSI bindings with port info Sowjanya Komatineni
2020-07-23 23:51   ` [RFC PATCH v4 10/14] media: tegra-video: Add support for external sensor capture Sowjanya Komatineni
2020-07-23 23:51   ` [RFC PATCH v4 12/14] gpu: host1x: mipi: Keep MIPI clock enabled till calibration is done Sowjanya Komatineni
2020-07-27  0:10     ` Dmitry Osipenko
2020-07-23 23:51   ` [RFC PATCH v4 14/14] media: tegra-video: Compute settle times based on the clock rate Sowjanya Komatineni
2020-07-23 23:51 ` [RFC PATCH v4 11/14] media: tegra-video: Add support for selection ioctl ops Sowjanya Komatineni
2020-07-23 23:51 ` [RFC PATCH v4 13/14] media: tegra-video: Add CSI MIPI pads calibration Sowjanya Komatineni
2020-07-24  9:43 ` [RFC PATCH v4 00/14] Support for Tegra video capture from external sensor Hans Verkuil
2020-07-24 19:16   ` Wolfram Sang
2020-07-27  0:25   ` Dmitry Osipenko

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