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Kernel/Devices: Defer creation of SysFS component after the constructor

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Instead of doing so in the constructor, let's do immediately after the
constructor, so we can safely pass a reference of a Device, so the
SysFSDeviceComponent constructor can use that object to identify whether
it's a block device or a character device.
This allows to us to not hold a device in SysFSDeviceComponent with a
RefPtr.
Also, we also call the before_removing method in both SlavePTY::unref
and File::unref, so because Device has that method being overrided, it
can ensure the device is removed always cleanly.
This commit is contained in:
Liav A 2021-09-10 14:44:46 +03:00 • committed by Andreas Kling
parent c545d4ffcb
commit f5de4f24b2
41 changed files with 142 additions and 57 deletions
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5
Kernel/Storage/Partition/DiskPartition.cpp
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@ -12,7 +12,10 @@ namespace Kernel {
NonnullRefPtr<DiskPartition> DiskPartition::create(BlockDevice& device, unsigned minor_number, DiskPartitionMetadata metadata)
{
return adopt_ref(*new DiskPartition(device, minor_number, metadata));
auto partition_or_error = try_create_device<DiskPartition>(device, minor_number, metadata);
// FIXME: Find a way to propagate errors
VERIFY(!partition_or_error.is_error());
return partition_or_error.release_value();
}
DiskPartition::DiskPartition(BlockDevice& device, unsigned minor_number, DiskPartitionMetadata metadata)