Re: [PATCH] dmaengine: sprd-dma: handle runtime PM get failure

[Frank Li]

On Tue, Aug 18, 2026 at 11:38:20AM -0500, Frank Li wrote:
> On Tue, Aug 18, 2026 at 04:41:24PM +0400, Jiawen Liu wrote:
> > From: jiawen <1298662399@xxxxxx>
> >
> > Route failed runtime-PM acquisition through its existing cleanup path.
> >
> > Release and disable runtime PM before continuing with the hardware
> > teardown, so an unsuccessful pm_runtime_get_sync() does not leave
> > runtime PM enabled.
> >
> > Signed-off-by: jiawen <1298662399@xxxxxx>
> > ---
> > diff --git a/drivers/dma/sprd-dma.c b/drivers/dma/sprd-dma.c
> > --- a/drivers/dma/sprd-dma.c
> > +++ b/drivers/dma/sprd-dma.c
> > @@ -1212,7 +1212,7 @@
> >
> >  	ret = pm_runtime_get_sync(&pdev->dev);
>
> Use cleanup
>
> 	PM_RUNTIME_ACQUIRE_IF_ENABLED(&pdev->dev, pm)
> 	ret = PM_RUNTIME_ACQUIRE_ERR(&pm)
> 	if (ret)
> 		...
>
> Frank

Rouyu wang already post the same fix

https://patchwork.kernel.org/project/linux-dmaengine/patch/20260813153149.3953497-1-ruoyuw560@xxxxxxxxx/

Frank
>
>
> >  	if (ret < 0)
> > -		goto err_rpm;
> > +		goto err_register;
> >
> >  	ret = dma_async_device_register(&sdev->dma_dev);
> >  	if (ret < 0) {
> > @@ -1234,7 +1234,6 @@
> >  err_register:
> >  	pm_runtime_put_noidle(&pdev->dev);
> >  	pm_runtime_disable(&pdev->dev);
> > -err_rpm:
> >  	sprd_dma_disable(sdev);
> >  	return ret;
> >  }
> >