powerpc/pseries/cmm: Implement release() function for sysfs device
[ Upstream commit 7d82127474
]
When unloading the module, one gets
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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
Signed-off-by: Sasha Levin <sashal@kernel.org>
5.4-rM2-2.2.x-imx-squashed
parent
e02c150d9b
commit
1bc418d6a9
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@ -411,6 +411,10 @@ static struct bus_type cmm_subsys = {
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.dev_name = "cmm",
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};
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static void cmm_release_device(struct device *dev)
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{
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}
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/**
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* cmm_sysfs_register - Register with sysfs
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*
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@ -426,6 +430,7 @@ static int cmm_sysfs_register(struct device *dev)
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dev->id = 0;
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dev->bus = &cmm_subsys;
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dev->release = cmm_release_device;
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if ((rc = device_register(dev)))
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goto subsys_unregister;
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