serial: fail on timeouts instead of retry

The timeouts may be infinite. That could stuck forever.
dosemu2 · Jul 21, 2024 · 32381d9 · 32381d9
1 parent 3ceb300
commit 32381d9
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/kernel/serial.asm b/kernel/serial.asm
@@ -62,7 +62,7 @@ ComRead:
 ComRd1:
                 call    BiosRdCom
                 or      ah,ah   ; timeout?
-                js      ComRd1  ; yes, try again
+                js      _IOErrCnt  ; yes, fail
 ComRd2:
                 stosb
                 loop    ComRd1