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Kernel: Make copy_{from,to}_user() return KResult and use TRY()
This makes EFAULT propagation flow much more naturally. :^)
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57 changed files with 318 additions and 551 deletions
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@ -62,10 +62,7 @@ KResultOr<FlatPtr> Process::do_statvfs(String path, statvfs* buf)
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}
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}
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if (!copy_to_user(buf, &kernelbuf))
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return EFAULT;
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return 0;
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return copy_to_user(buf, &kernelbuf);
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}
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KResultOr<FlatPtr> Process::sys$statvfs(Userspace<const Syscall::SC_statvfs_params*> user_params)
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@ -74,8 +71,7 @@ KResultOr<FlatPtr> Process::sys$statvfs(Userspace<const Syscall::SC_statvfs_para
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REQUIRE_PROMISE(rpath);
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Syscall::SC_statvfs_params params;
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if (!copy_from_user(¶ms, user_params))
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return EFAULT;
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TRY(copy_from_user(¶ms, user_params));
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auto path = get_syscall_path_argument(params.path);
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if (path.is_error())
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return path.error();
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