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Kernel: Make all syscall functions return KResultOr<T>

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This makes it a lot easier to return errors since we no longer have to
worry about negating EFOO errors and can just return them flat.
This commit is contained in:
Andreas Kling 2021-03-01 13:49:16 +01:00
parent 9af1e1a3bf
commit ac71775de5
70 changed files with 747 additions and 742 deletions
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8
Kernel/Syscalls/get_dir_entries.cpp
View file

@ -29,17 +29,17 @@
namespace Kernel {
ssize_t Process::sys$get_dir_entries(int fd, void* buffer, ssize_t size)
KResultOr<ssize_t> Process::sys$get_dir_entries(int fd, void* buffer, ssize_t size)
{
REQUIRE_PROMISE(stdio);
if (size < 0)
return -EINVAL;
return EINVAL;
auto description = file_description(fd);
if (!description)
return -EBADF;
return EBADF;
auto user_buffer = UserOrKernelBuffer::for_user_buffer((u8*)buffer, size);
if (!user_buffer.has_value())
return -EFAULT;
return EFAULT;
return description->get_dir_entries(user_buffer.value(), size);
}