From 9a43ead118ec1506848bad9d2bcddfb0fd458552 Mon Sep 17 00:00:00 2001
From: dzwdz
Date: Sun, 7 Aug 2022 22:07:27 +0200
Subject: kernel: ps2 mouse support

---
 src/kernel/arch/amd64/driver/serial.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/kernel/arch/amd64/driver/serial.c')

diff --git a/src/kernel/arch/amd64/driver/serial.c b/src/kernel/arch/amd64/driver/serial.c
index d8ee90b..921e140 100644
--- a/src/kernel/arch/amd64/driver/serial.c
+++ b/src/kernel/arch/amd64/driver/serial.c
@@ -80,8 +80,8 @@ static void accept(struct vfs_request *req) {
 				while (*slot) slot = &(*slot)->postqueue_next;
 				*slot = req;
 			} else if (req->caller) {
-				if (ret < 0) ret = 0;
 				ret = ring_to_virt((void*)&backlog, req->caller->pages, req->output.buf, req->output.len);
+				// TODO output.len can overflow here
 				vfsreq_finish_short(req, ret);
 			} else {
 				vfsreq_finish_short(req, -1);
-- 
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