From: Jonathan Cameron <jic23@kernel.org>
To: Cai Huoqing <caihuoqing@baidu.com>
Cc: Linus Walleij <linus.walleij@linaro.org>,
Lars-Peter Clausen <lars@metafoo.de>,
Shawn Guo <shawnguo@kernel.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
"Pengutronix Kernel Team" <kernel@pengutronix.de>,
Fabio Estevam <festevam@gmail.com>,
"NXP Linux Team" <linux-imx@nxp.com>,
Vladimir Zapolskiy <vz@mleia.com>,
"Neil Armstrong" <narmstrong@baylibre.com>,
Kevin Hilman <khilman@baylibre.com>,
Jerome Brunet <jbrunet@baylibre.com>,
Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
Andy Gross <agross@kernel.org>,
"Bjorn Andersson" <bjorn.andersson@linaro.org>,
Heiko Stuebner <heiko@sntech.de>,
<linux-arm-kernel@lists.infradead.org>,
<linux-iio@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linux-amlogic@lists.infradead.org>,
<linux-arm-msm@vger.kernel.org>,
<linux-rockchip@lists.infradead.org>
Subject: Re: [PATCH v3 8/9] iio: adc: rockchip_saradc: Make use of the helper function dev_err_probe()
Date: Wed, 29 Sep 2021 17:55:51 +0100 [thread overview]
Message-ID: <20210929175551.7517b018@jic23-huawei> (raw)
In-Reply-To: <20210928141956.2148-8-caihuoqing@baidu.com>
On Tue, 28 Sep 2021 22:19:54 +0800
Cai Huoqing <caihuoqing@baidu.com> wrote:
> When possible use dev_err_probe help to properly deal with the
> PROBE_DEFER error, the benefit is that DEFER issue will be logged
> in the devices_deferred debugfs file.
> Using dev_err_probe() can reduce code size, and the error value
> gets printed.
>
> Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
In this driver, there is also a call to
devm_reset_control_get_exclusive() which I think can return
-EPROBE_DEFER
There isn't a message printed on that particular patch, but it would
be good to add something generic. Same for platform_get_irq()
There are some devm_clk_get() calls as well which likewise probably
want handling in a similar fashion as you have done in other patches.
Thanks,
Jonathan
> ---
> v1->v2: Remove the separate line of PTR_ERR().
>
> drivers/iio/adc/rockchip_saradc.c | 8 +++-----
> 1 file changed, 3 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/iio/adc/rockchip_saradc.c b/drivers/iio/adc/rockchip_saradc.c
> index a56a0d7337ca..57419ccb3c70 100644
> --- a/drivers/iio/adc/rockchip_saradc.c
> +++ b/drivers/iio/adc/rockchip_saradc.c
> @@ -392,11 +392,9 @@ static int rockchip_saradc_probe(struct platform_device *pdev)
> }
>
> info->vref = devm_regulator_get(&pdev->dev, "vref");
> - if (IS_ERR(info->vref)) {
> - dev_err(&pdev->dev, "failed to get regulator, %ld\n",
> - PTR_ERR(info->vref));
> - return PTR_ERR(info->vref);
> - }
> + if (IS_ERR(info->vref))
> + return dev_err_probe(&pdev->dev, PTR_ERR(info->vref),
> + "failed to get regulator\n");
>
> if (info->reset)
> rockchip_saradc_reset_controller(info->reset);
next prev parent reply other threads:[~2021-09-29 16:52 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-28 14:19 [PATCH v3 1/9] iio: adc: ab8500-gpadc: Make use of the helper function dev_err_probe() Cai Huoqing
2021-09-28 14:19 ` [PATCH v3 2/9] iio: adc: imx7d_adc: " Cai Huoqing
2021-09-29 16:26 ` Jonathan Cameron
2021-09-28 14:19 ` [PATCH v3 3/9] iio: adc: lpc18xx_adc: " Cai Huoqing
2021-09-28 14:19 ` [PATCH v3 4/9] iio: adc: max1118: " Cai Huoqing
2021-09-28 14:19 ` [PATCH v3 5/9] iio: adc: max1241: " Cai Huoqing
2021-09-29 16:40 ` Jonathan Cameron
2021-09-28 14:19 ` [PATCH v3 6/9] iio: adc: meson_saradc: " Cai Huoqing
2021-10-02 13:01 ` Martin Blumenstingl
2021-10-02 16:09 ` Jonathan Cameron
2021-10-02 17:06 ` Martin Blumenstingl
2021-09-28 14:19 ` [PATCH v3 7/9] iio: adc: qcom-pm8xxx-xoadc: " Cai Huoqing
2021-09-28 14:30 ` Linus Walleij
2021-09-28 14:19 ` [PATCH v3 8/9] iio: adc: rockchip_saradc: " Cai Huoqing
2021-09-29 16:55 ` Jonathan Cameron [this message]
2021-09-28 14:19 ` [PATCH v3 9/9] iio: adc: ti-ads7950: " Cai Huoqing
2021-09-29 16:20 ` [PATCH v3 1/9] iio: adc: ab8500-gpadc: " Jonathan Cameron
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