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Kernel: Fix adopt_ref_if_nonnull(new T).release_nonnull() pattern

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This does the exact thing as `adopt_ref`, which is a recent addition to
AK.

Note that pointers returned by a bare new (without `nothrow`) are
guaranteed not to return null, so they can safely be converted into
references.
This commit is contained in:
Daniel Bertalan 2021-06-28 15:19:25 +02:00 committed by Ali Mohammad Pur
parent 9b1157924b
commit 2a5d9a6944
Notes: sideshowbarker 2024-07-18 11:19:15 +09:00 
Author: https://github.com/BertalanD
Commit: https://github.com/SerenityOS/serenity/commit/2a5d9a6944a
Pull-request: https://github.com/SerenityOS/serenity/pull/8295
Reviewed-by: https://github.com/Hendiadyoin1
Reviewed-by: https://github.com/alimpfard
4 changed files with 4 additions and 5 deletions
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3
Kernel/Devices/FullDevice.cpp
View File

@ -15,7 +15,7 @@ namespace Kernel {
UNMAP_AFTER_INIT NonnullRefPtr<FullDevice> FullDevice::must_create()
{
return adopt_ref_if_nonnull(new FullDevice).release_nonnull();
return adopt_ref(*new FullDevice);
}
UNMAP_AFTER_INIT FullDevice::FullDevice()
@ -45,5 +45,4 @@ KResultOr<size_t> FullDevice::write(FileDescription&, u64, const UserOrKernelBuf
return 0;
return ENOSPC;
}
}

2
Kernel/Devices/MemoryDevice.cpp
View File

@ -17,7 +17,7 @@ namespace Kernel {
UNMAP_AFTER_INIT NonnullRefPtr<MemoryDevice> MemoryDevice::must_create()
{
return adopt_ref_if_nonnull(new MemoryDevice).release_nonnull();
return adopt_ref(*new MemoryDevice);
}
UNMAP_AFTER_INIT MemoryDevice::MemoryDevice()

2
Kernel/Devices/RandomDevice.cpp
View File

@ -13,7 +13,7 @@ namespace Kernel {
UNMAP_AFTER_INIT NonnullRefPtr<RandomDevice> RandomDevice::must_create()
{
return adopt_ref_if_nonnull(new RandomDevice).release_nonnull();
return adopt_ref(*new RandomDevice);
}
UNMAP_AFTER_INIT RandomDevice::RandomDevice()

2
Kernel/Devices/ZeroDevice.cpp
View File

@ -14,7 +14,7 @@ namespace Kernel {
UNMAP_AFTER_INIT NonnullRefPtr<ZeroDevice> ZeroDevice::must_create()
{
return adopt_ref_if_nonnull(new ZeroDevice).release_nonnull();
return adopt_ref(*new ZeroDevice);
}
UNMAP_AFTER_INIT ZeroDevice::ZeroDevice()