pmdomain: core: add dummy release function to genpd device

The genpd device, which is really only used as a handle to lookup
OPP, but not even registered to the device core otherwise and thus
lifetime linked to the genpd struct it is contained in, is missing
a release function. After b8f7bbd1f4ec ("pmdomain: core: Add
missing put_device()") the device will be cleaned up going through
the driver core device_release() function, which will warn when no
release callback is present for the device. Add a dummy release
function to shut up the warning.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Tested-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Fixes: b8f7bbd1f4ec ("pmdomain: core: Add missing put_device()")
Cc: stable@vger.kernel.org
Message-ID: <20241218184433.1930532-1-l.stach@pengutronix.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

diff --git a/drivers/pmdomain/core.c b/drivers/pmdomain/core.c
index bb11f467dc78c7dd0a695f0b26c425f54b2fea26..20a9efebbcb76e32b64b5d3f670f2481887ef165 100644 (file)
--- a/drivers/pmdomain/core.c
+++ b/drivers/pmdomain/core.c
@@ -2142,6 +2142,11 @@ static int genpd_set_default_power_state(struct generic_pm_domain *genpd)
        return 0;
 }
 
+static void genpd_provider_release(struct device *dev)
+{
+       /* nothing to be done here */
+}
+
 static int genpd_alloc_data(struct generic_pm_domain *genpd)
 {
        struct genpd_governor_data *gd = NULL;
@@ -2173,6 +2178,7 @@ static int genpd_alloc_data(struct generic_pm_domain *genpd)
 
        genpd->gd = gd;
        device_initialize(&genpd->dev);
+       genpd->dev.release = genpd_provider_release;
 
        if (!genpd_is_dev_name_fw(genpd)) {
                dev_set_name(&genpd->dev, "%s", genpd->name);