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pmdomain: core: add dummy release function to genpd device

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BugLink: https://bugs.launchpad.net/bugs/2102118

commit f64f610ec6ab59dd0391b03842cea3a4cd8ee34f upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit cba9d51794ecde58a21e4e96bcfd0a18f7dd4ff8 linux-6.12.y)
[koichiroden: follow-up fix for "pmdomain: core: Add missing
put_device()", from v6.12.9]
Signed-off-by: Koichiro Den <koichiro.den@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
This commit is contained in:
Lucas Stach
2025-03-12 22:51:00 +09:00
committed by Stefan Bader
parent 30fba404d2
commit cc1f1ad1d1
1 changed files with 6 additions and 0 deletions
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drivers/pmdomain/core.c
+6
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@@ -2003,6 +2003,11 @@ 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;
@@ -2034,6 +2039,7 @@ 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);