driver core: Release all resources during unbind before updating device links

commit 2e84dc37920012b458e9458b19fc4ed33f81bc74 upstream.

This commit fixes a bug in commit 9ed9895370ae ("driver core: Functional
dependencies tracking support") where the device link status was
incorrectly updated in the driver unbind path before all the device's
resources were released.

Fixes: 9ed9895370ae ("driver core: Functional dependencies tracking support")
Cc: stable <stable@kernel.org>
Reported-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Closes: https://lore.kernel.org/all/20231014161721.f4iqyroddkcyoefo@pengutronix.de/
Signed-off-by: Saravana Kannan <saravanak@google.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Yang Yingliang <yangyingliang@huawei.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Matti Vaittinen <mazziesaccount@gmail.com>
Cc: James Clark <james.clark@arm.com>
Acked-by: "Rafael J. Wysocki" <rafael@kernel.org>
Tested-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20231018013851.3303928-1-saravanak@google.com
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index ab0b2eb5fa07f3d6653cee176bbf3e42afdbfe7f..0bd166ad6f130c247b281c4e638d1d4c274b9292 100644 (file)
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -1228,8 +1228,6 @@ static void __device_release_driver(struct device *dev, struct device *parent)
                else if (drv->remove)
                        drv->remove(dev);
 
-               device_links_driver_cleanup(dev);
-
                devres_release_all(dev);
                arch_teardown_dma_ops(dev);
                kfree(dev->dma_range_map);
@@ -1241,6 +1239,8 @@ static void __device_release_driver(struct device *dev, struct device *parent)
                pm_runtime_reinit(dev);
                dev_pm_set_driver_flags(dev, 0);
 
+               device_links_driver_cleanup(dev);
+
                klist_remove(&dev->p->knode_driver);
                device_pm_check_callbacks(dev);
                if (dev->bus)