[PATCH v1 19/23] pmdomain: imx: gpcv2: Discard pm_runtime_put() return value

Rafael J. Wysocki posted 1 patch 1 month, 2 weeks ago
drivers/pmdomain/imx/gpcv2.c |    4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
[PATCH v1 19/23] pmdomain: imx: gpcv2: Discard pm_runtime_put() return value
Posted by Rafael J. Wysocki 1 month, 2 weeks ago
From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Passing pm_runtime_put() return value to the callers is not particularly
useful.

Returning an error code from pm_runtime_put() merely means that it has
not queued up a work item to check whether or not the device can be
suspended and there are many perfectly valid situations in which that
can happen, like after writing "on" to the devices' runtime PM "control"
attribute in sysfs for one example.

Accordingly, update imx_pgc_domain_suspend() to simply discard the
return value of pm_runtime_put() and always return success to the
caller.

This will facilitate a planned change of the pm_runtime_put() return
type to void in the future.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---

This patch is part of a series, but it doesn't depend on anything else
in that series.  The last patch in the series depends on it.

It can be applied by itself and if you decide to do so, please let me
know.

Otherwise, an ACK or equivalent will be appreciated, but also the lack
of specific criticism will be eventually regarded as consent.

---
 drivers/pmdomain/imx/gpcv2.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/pmdomain/imx/gpcv2.c
+++ b/drivers/pmdomain/imx/gpcv2.c
@@ -1420,7 +1420,9 @@ static int imx_pgc_domain_suspend(struct
 
 static int imx_pgc_domain_resume(struct device *dev)
 {
-	return pm_runtime_put(dev);
+	pm_runtime_put(dev);
+
+	return 0;
 }
 #endif
Re: [PATCH v1 19/23] pmdomain: imx: gpcv2: Discard pm_runtime_put() return value
Posted by Ulf Hansson 1 month, 1 week ago
On Mon, 22 Dec 2025 at 21:37, Rafael J. Wysocki <rafael@kernel.org> wrote:
>
> From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
>
> Passing pm_runtime_put() return value to the callers is not particularly
> useful.
>
> Returning an error code from pm_runtime_put() merely means that it has
> not queued up a work item to check whether or not the device can be
> suspended and there are many perfectly valid situations in which that
> can happen, like after writing "on" to the devices' runtime PM "control"
> attribute in sysfs for one example.
>
> Accordingly, update imx_pgc_domain_suspend() to simply discard the
> return value of pm_runtime_put() and always return success to the
> caller.
>
> This will facilitate a planned change of the pm_runtime_put() return
> type to void in the future.
>
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Applied for next, thanks!

Kind regards
Uffe


> ---
>
> This patch is part of a series, but it doesn't depend on anything else
> in that series.  The last patch in the series depends on it.
>
> It can be applied by itself and if you decide to do so, please let me
> know.
>
> Otherwise, an ACK or equivalent will be appreciated, but also the lack
> of specific criticism will be eventually regarded as consent.
>
> ---
>  drivers/pmdomain/imx/gpcv2.c |    4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
>
> --- a/drivers/pmdomain/imx/gpcv2.c
> +++ b/drivers/pmdomain/imx/gpcv2.c
> @@ -1420,7 +1420,9 @@ static int imx_pgc_domain_suspend(struct
>
>  static int imx_pgc_domain_resume(struct device *dev)
>  {
> -       return pm_runtime_put(dev);
> +       pm_runtime_put(dev);
> +
> +       return 0;
>  }
>  #endif
>
>
>
>
Re: [PATCH v1 19/23] pmdomain: imx: gpcv2: Discard pm_runtime_put() return value
Posted by Peng Fan 1 month, 2 weeks ago
On Mon, Dec 22, 2025 at 09:29:41PM +0100, Rafael J. Wysocki wrote:
>From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
>
>Passing pm_runtime_put() return value to the callers is not particularly
>useful.
>
>Returning an error code from pm_runtime_put() merely means that it has
>not queued up a work item to check whether or not the device can be
>suspended and there are many perfectly valid situations in which that
>can happen, like after writing "on" to the devices' runtime PM "control"
>attribute in sysfs for one example.
>
>Accordingly, update imx_pgc_domain_suspend() to simply discard the
>return value of pm_runtime_put() and always return success to the
>caller.
>
>This will facilitate a planned change of the pm_runtime_put() return
>type to void in the future.
>
>Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Acked-by: Peng Fan <peng.fan@nxp.com>