Kernel: Make all syscall functions return KResultOr<T>

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.

1 files changed, 4 insertions, 4 deletions

diff --git a/Kernel/Syscalls/debug.cpp b/Kernel/Syscalls/debug.cpp
index 2753b954e1..09d3d57830 100644
--- a/Kernel/Syscalls/debug.cpp
+++ b/Kernel/Syscalls/debug.cpp
@@ -31,26 +31,26 @@
 
 namespace Kernel {
 
-int Process::sys$dump_backtrace()
+KResultOr<int> Process::sys$dump_backtrace()
 {
     dump_backtrace();
     return 0;
 }
 
-int Process::sys$dbgputch(u8 ch)
+KResultOr<int> Process::sys$dbgputch(u8 ch)
 {
     IO::out8(0xe9, ch);
     return 0;
 }
 
-int Process::sys$dbgputstr(Userspace<const u8*> characters, int length)
+KResultOr<int> Process::sys$dbgputstr(Userspace<const u8*> characters, int length)
 {
     if (length <= 0)
         return 0;
 
     auto buffer = UserOrKernelBuffer::for_user_buffer(characters, length);
     if (!buffer.has_value())
-        return -EFAULT;
+        return EFAULT;
     ssize_t nread = buffer.value().read_buffered<1024>(length, [&](const u8* buffer, size_t buffer_size) {
         for (size_t i = 0; i < buffer_size; ++i)
             IO::out8(0xe9, buffer[i]);