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Kernel: Make copy_time_from_user() helpers use KResultOr<Time>

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...and use TRY() for smooth error propagation everywhere.
This commit is contained in:
Andreas Kling 2021-09-06 22:22:14 +02:00
parent ef94c73a01
commit e6929835d2
6 changed files with 29 additions and 54 deletions
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6
Kernel/StdLib.h
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@ -19,10 +19,10 @@ struct StringArgument;
}
[[nodiscard]] Kernel::KResultOr<NonnullOwnPtr<Kernel::KString>> try_copy_kstring_from_user(Userspace<const char*>, size_t);
[[nodiscard]] Optional<Time> copy_time_from_user(const timespec*);
[[nodiscard]] Optional<Time> copy_time_from_user(const timeval*);
KResultOr<Time> copy_time_from_user(timespec const*);
KResultOr<Time> copy_time_from_user(timeval const*);
template<typename T>
[[nodiscard]] Optional<Time> copy_time_from_user(Userspace<T*> src);
KResultOr<Time> copy_time_from_user(Userspace<T*>);
[[nodiscard]] Optional<u32> user_atomic_fetch_add_relaxed(volatile u32* var, u32 val);
[[nodiscard]] Optional<u32> user_atomic_exchange_relaxed(volatile u32* var, u32 val);