X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=Documentation%2Fwatchdog%2Fsrc%2Fwatchdog-simple.c;h=4cf72f3fa8e91b1b725ba3e2af92dc68e4693394;hb=b66e1f11ebc429569a3784aaf64123633d9e3ed1;hp=47801bc7e742dd44a650322e2e8b79bbf463adcf;hpb=c4366889dda8110247be59ca41fddb82951a8c26;p=linux-2.6

diff --git a/Documentation/watchdog/src/watchdog-simple.c b/Documentation/watchdog/src/watchdog-simple.c
index 47801bc7e7..4cf72f3fa8 100644
--- a/Documentation/watchdog/src/watchdog-simple.c
+++ b/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;
 }