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Kernel: Make file description lookup return KResultOr

Instead of checking it at every call site (to generate EBADF), we make
file_description(fd) return a KResultOr<NonnullRefPtr<FileDescription>>.

This allows us to wrap all the calls in TRY(). :^)

The only place that got a little bit messier from this is sys$mount(),
and there's a whole bunch of things there in need of cleanup.
This commit is contained in:
Andreas Kling 2021-09-05 18:34:28 +02:00
parent 2d2ea05c97
commit a9204510a4
24 changed files with 62 additions and 155 deletions

View file

@ -676,8 +676,7 @@ public:
m_fds_metadatas.clear();
}
// FIXME: Consider to remove this somehow
RefPtr<FileDescription> file_description(int fd) const;
KResultOr<NonnullRefPtr<FileDescription>> file_description(int fd) const;
private:
FileDescriptions() = default;