From 7296637e4d1c58e2a7b353e8b0ebb84f9e3b4f8f Mon Sep 17 00:00:00 2001
From: Maxim Devaev <mdevaev@gmail.com>
Date: Tue, 7 Jun 2022 05:16:10 +0300
Subject: [PATCH] muted einval

---
 kvmd/apps/watchdog/__init__.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/kvmd/apps/watchdog/__init__.py b/kvmd/apps/watchdog/__init__.py
index 953168cd..e7271ac1 100644
--- a/kvmd/apps/watchdog/__init__.py
+++ b/kvmd/apps/watchdog/__init__.py
@@ -57,7 +57,12 @@ def _write_int(rtc: int, key: str, value: int) -> None:
 
 
 def _reset_alarm(rtc: int, timeout: int) -> None:
-    now = _read_int(rtc, "since_epoch")
+    try:
+        now = _read_int(rtc, "since_epoch")
+    except OSError as err:
+        if err.errno != errno.EINVAL:
+            raise
+        raise RtcIsNotAvailableError("Can't read since_epoch right now")
     if now == 0:
         raise RtcIsNotAvailableError("Current UNIX time == 0")
     try: