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driver core: add dev_groups to all drivers

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Add the ability for the driver core to create and remove a list of
attribute groups automatically when the device is bound/unbound from a
specific driver.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Tested-by: Richard Gong <richard.gong@linux.intel.com>
Link: https://lore.kernel.org/r/20190731124349.4474-2-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Dmitry Torokhov
2019-07-31 14:43:40 +02:00
committed by Greg Kroah-Hartman
parent 5f9e832c13
commit 23b6904442
2 changed files with 17 additions and 0 deletions
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14
drivers/base/dd.c
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@@ -554,9 +554,16 @@ re_probe:
goto probe_failed;
}
if (device_add_groups(dev, drv->dev_groups)) {
dev_err(dev, "device_add_groups() failed\n");
goto dev_groups_failed;
}
if (test_remove) {
test_remove = false;
device_remove_groups(dev, drv->dev_groups);
if (dev->bus->remove)
dev->bus->remove(dev);
else if (drv->remove)
@@ -584,6 +591,11 @@ re_probe:
drv->bus->name, __func__, dev_name(dev), drv->name);
goto done;
dev_groups_failed:
if (dev->bus->remove)
dev->bus->remove(dev);
else if (drv->remove)
drv->remove(dev);
probe_failed:
if (dev->bus)
blocking_notifier_call_chain(&dev->bus->p->bus_notifier,
@@ -1114,6 +1126,8 @@ static void __device_release_driver(struct device *dev, struct device *parent)
pm_runtime_put_sync(dev);
device_remove_groups(dev, drv->dev_groups);
if (dev->bus && dev->bus->remove)
dev->bus->remove(dev);
else if (drv->remove)