git.openwrt.org Git - openwrt/staging/xback.git/blob

   1 From f64f610ec6ab59dd0391b03842cea3a4cd8ee34f Mon Sep 17 00:00:00 2001
   2 From: Lucas Stach <l.stach@pengutronix.de>
   3 Date: Wed, 18 Dec 2024 19:44:33 +0100
   4 Subject: [PATCH] pmdomain: core: add dummy release function to genpd device
   5
   6 The genpd device, which is really only used as a handle to lookup
   7 OPP, but not even registered to the device core otherwise and thus
   8 lifetime linked to the genpd struct it is contained in, is missing
   9 a release function. After b8f7bbd1f4ec ("pmdomain: core: Add
  10 missing put_device()") the device will be cleaned up going through
  11 the driver core device_release() function, which will warn when no
  12 release callback is present for the device. Add a dummy release
  13 function to shut up the warning.
  14
  15 Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
  16 Tested-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
  17 Fixes: b8f7bbd1f4ec ("pmdomain: core: Add missing put_device()")
  18 Cc: stable@vger.kernel.org
  19 Message-ID: <20241218184433.1930532-1-l.stach@pengutronix.de>
  20 Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
  21 ---
  22  drivers/base/power/domain.c | 6 ++++++
  23  1 file changed, 6 insertions(+)
  24
  25 --- a/drivers/base/power/domain.c
  26 +++ b/drivers/base/power/domain.c
  27 @@ -2040,6 +2040,11 @@ static void genpd_lock_init(struct gener
  28         }
  29  }
  30
  31 +static void genpd_provider_release(struct device *dev)
  32 +{
  33 +       /* nothing to be done here */
  34 +}
  35 +
  36  /**
  37   * pm_genpd_init - Initialize a generic I/O PM domain object.
  38   * @genpd: PM domain object to initialize.
  39 @@ -2106,6 +2111,7 @@ int pm_genpd_init(struct generic_pm_doma
  40                 return ret;
  41
  42         device_initialize(&genpd->dev);
  43 +       genpd->dev.release = genpd_provider_release;
  44         dev_set_name(&genpd->dev, "%s", genpd->name);
  45
  46         mutex_lock(&gpd_list_lock);