diff --git a/[refs] b/[refs]
index dbde6a26e9f0..1e69c38d785f 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: c283cf2c09ca1b7f1e7677bde384a8f92b1b7584
+refs/heads/master: 06063e26bc3ab62aa7aca874c6ce9e7638673838
diff --git a/trunk/Documentation/watchdog/src/watchdog-simple.c b/trunk/Documentation/watchdog/src/watchdog-simple.c
index 47801bc7e742..4cf72f3fa8e9 100644
--- a/trunk/Documentation/watchdog/src/watchdog-simple.c
+++ b/trunk/Documentation/watchdog/src/watchdog-simple.c
@@ -3,15 +3,25 @@
 #include <unistd.h>
 #include <fcntl.h>
 
-int main(int argc, const char *argv[]) {
+int main(void)
+{
 	int fd = open("/dev/watchdog", O_WRONLY);
+	int ret = 0;
 	if (fd == -1) {
 		perror("watchdog");
-		exit(1);
+		exit(EXIT_FAILURE);
 	}
 	while (1) {
-		write(fd, "\0", 1);
-		fsync(fd);
+		ret = write(fd, "\0", 1);
+		if (ret != 1) {
+			ret = -1;
+			break;
+		}
+		ret = fsync(fd);
+		if (ret)
+			break;
 		sleep(10);
 	}
+	close(fd);
+	return ret;
 }