1 files changed, 9 insertions, 1 deletions
diff --git a/src/shared/watchdog.c b/src/shared/watchdog.c
index 4f3e0125f3..b0a422da84 100644
--- a/src/shared/watchdog.c
+++ b/src/shared/watchdog.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
@@ -26,10 +27,12 @@
 
 #include "fd-util.h"
 #include "log.h"
+#include "string-util.h"
 #include "time-util.h"
 #include "watchdog.h"
 
 static int watchdog_fd = -1;
+static char *watchdog_device = NULL;
 static usec_t watchdog_timeout = USEC_INFINITY;
 
 static int update_timeout(void) {
@@ -83,7 +86,8 @@ static int open_watchdog(void) {
         if (watchdog_fd >= 0)
                 return 0;
 
-        watchdog_fd = open("/dev/watchdog", O_WRONLY|O_CLOEXEC);
+        watchdog_fd = open(watchdog_device ?: "/dev/watchdog",
+                           O_WRONLY|O_CLOEXEC);
         if (watchdog_fd < 0)
                 return -errno;
 
@@ -95,6 +99,10 @@ static int open_watchdog(void) {
         return update_timeout();
 }
 
+int watchdog_set_device(char *path) {
+        return free_and_strdup(&watchdog_device, path);
+}
+
 int watchdog_set_timeout(usec_t *usec) {
         int r;