Documentation/watchdog: close the fd when cmdline arg given
in the watchdog test code, the ioctl is performed on the watchdog device
and just doing exit(0) so we leak a filedescripor.
Signed-off-by: Devendra Naga <devendra.aaru@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
diff --git a/Documentation/watchdog/src/watchdog-test.c b/Documentation/watchdog/src/watchdog-test.c
index 63fdc34..23084f2 100644
--- a/Documentation/watchdog/src/watchdog-test.c
+++ b/Documentation/watchdog/src/watchdog-test.c
@@ -47,18 +47,18 @@
ioctl(fd, WDIOC_SETOPTIONS, &flags);
fprintf(stderr, "Watchdog card disabled.\n");
fflush(stderr);
- exit(0);
+ goto end;
} else if (!strncasecmp(argv[1], "-e", 2)) {
flags = WDIOS_ENABLECARD;
ioctl(fd, WDIOC_SETOPTIONS, &flags);
fprintf(stderr, "Watchdog card enabled.\n");
fflush(stderr);
- exit(0);
+ goto end;
} else {
fprintf(stderr, "-d to disable, -e to enable.\n");
fprintf(stderr, "run by itself to tick the card.\n");
fflush(stderr);
- exit(0);
+ goto end;
}
} else {
fprintf(stderr, "Watchdog Ticking Away!\n");
@@ -69,4 +69,7 @@
keep_alive();
sleep(1);
}
+end:
+ close(fd);
+ return 0;
}