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Kernel: Make UserOrKernelBuffer return KResult from read/write/memset

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This allows us to simplify a whole bunch of call sites with TRY(). :^)
This commit is contained in:
Andreas Kling 2021-09-07 12:09:52 +02:00
parent 7bf8844499
commit b481132418
29 changed files with 85 additions and 118 deletions
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3
Kernel/Devices/HID/MouseDevice.cpp
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@ -39,8 +39,7 @@ KResultOr<size_t> MouseDevice::read(FileDescription&, u64, UserOrKernelBuffer& b
dbgln_if(MOUSE_DEBUG, "PS2 Mouse Read: Filter packets");
size_t bytes_read_from_packet = min(remaining_space_in_buffer, sizeof(MousePacket));
if (!buffer.write(&packet, nread, bytes_read_from_packet))
return EFAULT;
TRY(buffer.write(&packet, nread, bytes_read_from_packet));
nread += bytes_read_from_packet;
remaining_space_in_buffer -= bytes_read_from_packet;