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powerpc/pseries/cmm: Implement release() function for sysfs device 

When unloading the module, one gets
  ------------[ cut here ]------------
  Device 'cmm0' does not have a release() function, it is broken and must be fixed. See Documentation/kobject.txt.
  WARNING: CPU: 0 PID: 19308 at drivers/base/core.c:1244 .device_release+0xcc/0xf0
  ...

We only have one static fake device. There is nothing to do when
releasing the device (via cmm_exit()).

Signed-off-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20191031142933.10779-2-david@redhat.com
alistair/sunxi64-5.5-dsi
David Hildenbrand 2019-10-31 15:29:22 +01:00 committed by Michael Ellerman
parent 0a87ccd369
commit 7d82127474
1 changed files with 5 additions and 0 deletions
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5
arch/powerpc/platforms/pseries/cmm.c
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@ -411,6 +411,10 @@ static struct bus_type cmm_subsys = {
.dev_name = "cmm",
};
static void cmm_release_device(struct device *dev)
{
}
/**
* cmm_sysfs_register - Register with sysfs
*
@ -426,6 +430,7 @@ static int cmm_sysfs_register(struct device *dev)
dev->id = 0;
dev->bus = &cmm_subsys;
dev->release = cmm_release_device;
if ((rc = device_register(dev)))
goto subsys_unregister;