watchdog: minor optimization in watchdog_setup()

2021-10-13 08:50:08 +02:00
parent 85e5613cf3
commit fcbf2c64f5
1 changed files with 4 additions and 0 deletions
@@ -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 */