2015-08-24 21:23:27

by Julia Lawall

Subject: [PATCH 0/2] convert null test to IS_ERR test

Since commit 323de9efdf3e ("pinctrl: make pinctrl_register() return proper
error code"), pinctrl_register returns an error code rather than NULL on
failure. Most drivers were updated at that time. Update some drivers that
were introduced more recently.

2015-08-24 21:22:53

by Julia Lawall

Subject: [PATCH 1/2] pinctrl: qcom: ssbi: convert null test to IS_ERR test

Since commit 323de9efdf3e ("pinctrl: make pinctrl_register() return proper
error code"), pinctrl_register returns an error code rather than NULL on
failure. Update some drivers that were introduced more recently.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression e,e1,e2;
@@

e = pinctrl_register(...)
... when != e = e1
if (
- e == NULL
+ IS_ERR(e)
) {
...
return
- e2
+ PTR_ERR(e)
;
}
// </smpl>

Signed-off-by: Julia Lawall <[email protected]>

---
drivers/pinctrl/qcom/pinctrl-ssbi-gpio.c | 4 ++--
drivers/pinctrl/qcom/pinctrl-ssbi-mpp.c | 4 ++--
2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/pinctrl/qcom/pinctrl-ssbi-gpio.c b/drivers/pinctrl/qcom/pinctrl-ssbi-gpio.c
index c978b31..e1a3721 100644
--- a/drivers/pinctrl/qcom/pinctrl-ssbi-gpio.c
+++ b/drivers/pinctrl/qcom/pinctrl-ssbi-gpio.c
@@ -723,9 +723,9 @@ static int pm8xxx_gpio_probe(struct platform_device *pdev)
#endif

pctrl->pctrl = pinctrl_register(&pctrl->desc, &pdev->dev, pctrl);
- if (!pctrl->pctrl) {
+ if (IS_ERR(pctrl->pctrl)) {
dev_err(&pdev->dev, "couldn't register pm8xxx gpio driver\n");
- return -ENODEV;
+ return PTR_ERR(pctrl->pctrl);
}

pctrl->chip = pm8xxx_gpio_template;
diff --git a/drivers/pinctrl/qcom/pinctrl-ssbi-mpp.c b/drivers/pinctrl/qcom/pinctrl-ssbi-mpp.c
index 2d1b69f..6652b8d 100644
--- a/drivers/pinctrl/qcom/pinctrl-ssbi-mpp.c
+++ b/drivers/pinctrl/qcom/pinctrl-ssbi-mpp.c
@@ -814,9 +814,9 @@ static int pm8xxx_mpp_probe(struct platform_device *pdev)
#endif

pctrl->pctrl = pinctrl_register(&pctrl->desc, &pdev->dev, pctrl);
- if (!pctrl->pctrl) {
+ if (IS_ERR(pctrl->pctrl)) {
dev_err(&pdev->dev, "couldn't register pm8xxx mpp driver\n");
- return -ENODEV;
+ return PTR_ERR(pctrl->pctrl);
}

pctrl->chip = pm8xxx_mpp_template;

2015-08-24 21:22:55

by Julia Lawall

Subject: [PATCH 2/2] pinctrl: digicolor: convert null test to IS_ERR test

Since commit 323de9efdf3e ("pinctrl: make pinctrl_register() return proper
error code"), pinctrl_register returns an error code rather than NULL on
failure. Update a driver that was introduced more recently.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression e,e1,e2;
@@

e = pinctrl_register(...)
... when != e = e1
if (
- e == NULL
+ IS_ERR(e)
) {
...
return
- e2
+ PTR_ERR(e)
;
}
// </smpl>

Signed-off-by: Julia Lawall <[email protected]>

---
drivers/pinctrl/pinctrl-digicolor.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-digicolor.c b/drivers/pinctrl/pinctrl-digicolor.c
index 461fffc..11f8b83 100644
--- a/drivers/pinctrl/pinctrl-digicolor.c
+++ b/drivers/pinctrl/pinctrl-digicolor.c
@@ -337,9 +337,9 @@ static int dc_pinctrl_probe(struct platform_device *pdev)
pmap->dev = &pdev->dev;

pmap->pctl = pinctrl_register(pctl_desc, &pdev->dev, pmap);
- if (!pmap->pctl) {
+ if (IS_ERR(pmap->pctl)) {
dev_err(&pdev->dev, "pinctrl driver registration failed\n");
- return -EINVAL;
+ return PTR_ERR(pmap->pctl);
}

ret = dc_gpiochip_add(pmap, pdev->dev.of_node);

2015-08-25 04:34:00

by Baruch Siach

Subject: Re: [PATCH 2/2] pinctrl: digicolor: convert null test to IS_ERR test

Hi Julia,

On Mon, Aug 24, 2015 at 11:12:27PM +0200, Julia Lawall wrote:
> Since commit 323de9efdf3e ("pinctrl: make pinctrl_register() return proper
> error code"), pinctrl_register returns an error code rather than NULL on
> failure. Update a driver that was introduced more recently.
>
> The semantic patch that makes this change is as follows:
> (http://coccinelle.lip6.fr/)
>
> // <smpl>
> @@
> expression e,e1,e2;
> @@
>
> e = pinctrl_register(...)
> ... when != e = e1
> if (
> - e == NULL
> + IS_ERR(e)
> ) {
> ...
> return
> - e2
> + PTR_ERR(e)
> ;
> }
> // </smpl>
>
> Signed-off-by: Julia Lawall <[email protected]>

Acked-by: Baruch Siach <[email protected]>

Thanks,
baruch

> drivers/pinctrl/pinctrl-digicolor.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/pinctrl/pinctrl-digicolor.c b/drivers/pinctrl/pinctrl-digicolor.c
> index 461fffc..11f8b83 100644
> --- a/drivers/pinctrl/pinctrl-digicolor.c
> +++ b/drivers/pinctrl/pinctrl-digicolor.c
> @@ -337,9 +337,9 @@ static int dc_pinctrl_probe(struct platform_device *pdev)
> pmap->dev = &pdev->dev;
>
> pmap->pctl = pinctrl_register(pctl_desc, &pdev->dev, pmap);
> - if (!pmap->pctl) {
> + if (IS_ERR(pmap->pctl)) {
> dev_err(&pdev->dev, "pinctrl driver registration failed\n");
> - return -EINVAL;
> + return PTR_ERR(pmap->pctl);
> }
>
> ret = dc_gpiochip_add(pmap, pdev->dev.of_node);

--
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