Re: [PATCH] iio: proximity: srf04: fix error handling in srf04_probe()
From: Jonathan Cameron
Date: Wed Aug 19 2026 - 21:58:48 EST
On Wed, 19 Aug 2026 20:03:17 +0100
Salah Triki <salah.triki@xxxxxxxxx> wrote:
> If pm_runtime_set_active() fails during srf04_probe(),
> iio_device_unregister() is called to cleanup, but the driver continues to
> execute pm_runtime_enable() and pm_runtime_idle() instead of aborting
> probe.
>
> Fix this by returning 'ret' immediately inside the error path if
> pm_runtime_set_active() fails, preventing invalid runtime PM operations on
> an unregistered device.
>
> Fixes: 2251157b335b ("iio: srf04: add power management feature")
> Signed-off-by: Salah Triki <salah.triki@xxxxxxxxx>
Fixed a few weeks back.
Thanks
Jonathan
> ---
> drivers/iio/proximity/srf04.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/iio/proximity/srf04.c b/drivers/iio/proximity/srf04.c
> index 7be50bdebfcb..e03f3f0dee04 100644
> --- a/drivers/iio/proximity/srf04.c
> +++ b/drivers/iio/proximity/srf04.c
> @@ -330,6 +330,7 @@ static int srf04_probe(struct platform_device *pdev)
> if (ret) {
> dev_err(data->dev, "pm_runtime_set_active: %d\n", ret);
> iio_device_unregister(indio_dev);
> + return ret;
> }
>
> pm_runtime_enable(data->dev);