* [PATCH -next] PM / devfreq: imx8m-ddrc: Fix inconsistent IS_ERR and PTR_ERR
@ 2019-12-30 8:47 YueHaibing
2019-12-30 17:35 ` Chanwoo Choi
0 siblings, 1 reply; 3+ messages in thread
From: YueHaibing @ 2019-12-30 8:47 UTC (permalink / raw)
To: myungjoo.ham, kyungmin.park, cw00.choi, shawnguo, s.hauer,
kernel, festevam, linux-imx
Cc: YueHaibing, linux-kernel, linux-arm-kernel, linux-pm
Fix inconsistent IS_ERR and PTR_ERR in imx8m_ddrc_probe().
Detected using Coccinelle.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
---
drivers/devfreq/imx8m-ddrc.c | 24 ++++++++++++++++++------
1 file changed, 18 insertions(+), 6 deletions(-)
diff --git a/drivers/devfreq/imx8m-ddrc.c b/drivers/devfreq/imx8m-ddrc.c
index 53df792..bc82d36 100644
--- a/drivers/devfreq/imx8m-ddrc.c
+++ b/drivers/devfreq/imx8m-ddrc.c
@@ -395,15 +395,27 @@ static int imx8m_ddrc_probe(struct platform_device *pdev)
}
priv->dram_core = devm_clk_get(dev, "core");
+ if (IS_ERR(priv->dram_core)) {
+ ret = PTR_ERR(priv->dram_core);
+ dev_err(dev, "failed to fetch core clock: %d\n", ret);
+ return ret;
+ }
priv->dram_pll = devm_clk_get(dev, "pll");
+ if (IS_ERR(priv->dram_pll)) {
+ ret = PTR_ERR(priv->dram_pll);
+ dev_err(dev, "failed to fetch pll clock: %d\n", ret);
+ return ret;
+ }
priv->dram_alt = devm_clk_get(dev, "alt");
+ if (IS_ERR(priv->dram_alt)) {
+ ret = PTR_ERR(priv->dram_alt);
+ dev_err(dev, "failed to fetch alt clock: %d\n", ret);
+ return ret;
+ }
priv->dram_apb = devm_clk_get(dev, "apb");
- if (IS_ERR(priv->dram_core) ||
- IS_ERR(priv->dram_pll) ||
- IS_ERR(priv->dram_alt) ||
- IS_ERR(priv->dram_apb)) {
- ret = PTR_ERR(priv->devfreq);
- dev_err(dev, "failed to fetch clocks: %d\n", ret);
+ if (IS_ERR(priv->dram_apb)) {
+ ret = PTR_ERR(priv->dram_apb);
+ dev_err(dev, "failed to fetch apb clock: %d\n", ret);
return ret;
}
--
2.7.4
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linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 3+ messages in thread* Re: [PATCH -next] PM / devfreq: imx8m-ddrc: Fix inconsistent IS_ERR and PTR_ERR
2019-12-30 8:47 [PATCH -next] PM / devfreq: imx8m-ddrc: Fix inconsistent IS_ERR and PTR_ERR YueHaibing
@ 2019-12-30 17:35 ` Chanwoo Choi
2019-12-30 18:08 ` Chanwoo Choi
0 siblings, 1 reply; 3+ messages in thread
From: Chanwoo Choi @ 2019-12-30 17:35 UTC (permalink / raw)
To: YueHaibing
Cc: Linux PM list, festevam, s.hauer, linux-kernel, Chanwoo Choi,
Kyungmin Park, MyungJoo Ham, dl-linux-imx, kernel, Shawn Guo,
linux-arm-kernel
On Mon, Dec 30, 2019 at 5:58 PM YueHaibing <yuehaibing@huawei.com> wrote:
>
> Fix inconsistent IS_ERR and PTR_ERR in imx8m_ddrc_probe().
> Detected using Coccinelle.
>
> Signed-off-by: YueHaibing <yuehaibing@huawei.com>
> ---
> drivers/devfreq/imx8m-ddrc.c | 24 ++++++++++++++++++------
> 1 file changed, 18 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/devfreq/imx8m-ddrc.c b/drivers/devfreq/imx8m-ddrc.c
> index 53df792..bc82d36 100644
> --- a/drivers/devfreq/imx8m-ddrc.c
> +++ b/drivers/devfreq/imx8m-ddrc.c
> @@ -395,15 +395,27 @@ static int imx8m_ddrc_probe(struct platform_device *pdev)
> }
>
> priv->dram_core = devm_clk_get(dev, "core");
> + if (IS_ERR(priv->dram_core)) {
> + ret = PTR_ERR(priv->dram_core);
> + dev_err(dev, "failed to fetch core clock: %d\n", ret);
If there is no special reason, just use 'get' instead of ' fetch' word.
s/fetch/get
> + return ret;
> + }
> priv->dram_pll = devm_clk_get(dev, "pll");
> + if (IS_ERR(priv->dram_pll)) {
> + ret = PTR_ERR(priv->dram_pll);
> + dev_err(dev, "failed to fetch pll clock: %d\n", ret);
ditto.
> + return ret;
> + }
> priv->dram_alt = devm_clk_get(dev, "alt");
> + if (IS_ERR(priv->dram_alt)) {
> + ret = PTR_ERR(priv->dram_alt);
> + dev_err(dev, "failed to fetch alt clock: %d\n", ret);
ditto.
> + return ret;
> + }
> priv->dram_apb = devm_clk_get(dev, "apb");
> - if (IS_ERR(priv->dram_core) ||
> - IS_ERR(priv->dram_pll) ||
> - IS_ERR(priv->dram_alt) ||
> - IS_ERR(priv->dram_apb)) {
> - ret = PTR_ERR(priv->devfreq);
> - dev_err(dev, "failed to fetch clocks: %d\n", ret);
> + if (IS_ERR(priv->dram_apb)) {
> + ret = PTR_ERR(priv->dram_apb);
> + dev_err(dev, "failed to fetch apb clock: %d\n", ret);
ditto.
> return ret;
> }
>
> --
> 2.7.4
>
>
--
Best Regards,
Chanwoo Choi
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [PATCH -next] PM / devfreq: imx8m-ddrc: Fix inconsistent IS_ERR and PTR_ERR
2019-12-30 17:35 ` Chanwoo Choi
@ 2019-12-30 18:08 ` Chanwoo Choi
0 siblings, 0 replies; 3+ messages in thread
From: Chanwoo Choi @ 2019-12-30 18:08 UTC (permalink / raw)
To: YueHaibing
Cc: Linux PM list, festevam, s.hauer, linux-kernel, Chanwoo Choi,
Kyungmin Park, MyungJoo Ham, dl-linux-imx, kernel, Shawn Guo,
linux-arm-kernel
On Tue, Dec 31, 2019 at 2:35 AM Chanwoo Choi <chanwoo@kernel.org> wrote:
>
> On Mon, Dec 30, 2019 at 5:58 PM YueHaibing <yuehaibing@huawei.com> wrote:
> >
> > Fix inconsistent IS_ERR and PTR_ERR in imx8m_ddrc_probe().
> > Detected using Coccinelle.
> >
> > Signed-off-by: YueHaibing <yuehaibing@huawei.com>
> > ---
> > drivers/devfreq/imx8m-ddrc.c | 24 ++++++++++++++++++------
> > 1 file changed, 18 insertions(+), 6 deletions(-)
> >
> > diff --git a/drivers/devfreq/imx8m-ddrc.c b/drivers/devfreq/imx8m-ddrc.c
> > index 53df792..bc82d36 100644
> > --- a/drivers/devfreq/imx8m-ddrc.c
> > +++ b/drivers/devfreq/imx8m-ddrc.c
> > @@ -395,15 +395,27 @@ static int imx8m_ddrc_probe(struct platform_device *pdev)
> > }
> >
> > priv->dram_core = devm_clk_get(dev, "core");
> > + if (IS_ERR(priv->dram_core)) {
> > + ret = PTR_ERR(priv->dram_core);
> > + dev_err(dev, "failed to fetch core clock: %d\n", ret);
>
> If there is no special reason, just use 'get' instead of ' fetch' word.
> s/fetch/get
Usually, use 'verb' included in function name to show the debug message.
But, Again thinking. the original comment used 'fetch' word. Please
ignore my comment
Applied it.
(snip)
Best Regards,
Chanwoo Choi
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
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2019-12-30 8:47 [PATCH -next] PM / devfreq: imx8m-ddrc: Fix inconsistent IS_ERR and PTR_ERR YueHaibing
2019-12-30 17:35 ` Chanwoo Choi
2019-12-30 18:08 ` Chanwoo Choi
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