From: Franck Bui <fbui@suse.com>
Date: Fri, 17 Sep 2021 07:21:18 +0000 (+0200)
Subject: watchdog: minor optimization in watchdog_setup()
X-Git-Tag: v250-rc1~510^2~7
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=fcbf2c64f5c392f4bbf820b446d0b6f993527b62;p=thirdparty%2Fsystemd.git

watchdog: minor optimization in watchdog_setup()
---

diff --git a/src/shared/watchdog.c b/src/shared/watchdog.c
index 78c13a7b059..3f4effddb51 100644
--- a/src/shared/watchdog.c
+++ b/src/shared/watchdog.c
@@ -134,6 +134,10 @@ int watchdog_set_device(const char *path) {
 
 int watchdog_setup(usec_t timeout) {
 
+        /* Let's shortcut duplicated requests */
+        if (watchdog_fd >= 0 && watchdog_timeout == timeout)
+                return 0;
+
         /* Initialize the watchdog timeout with the caller value. This value is
          * going to be updated by update_timeout() with the closest value
          * supported by the driver */