[src/trunk]: src/sbin/wdogctl Fix fd leaks. Found by cppcheck.

[wiz <wiz%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/bb60e242a3ad
branches:  trunk
changeset: 760437:bb60e242a3ad
user:      wiz <wiz%NetBSD.org@localhost>
date:      Tue Jan 04 23:48:44 2011 +0000

description:
Fix fd leaks. Found by cppcheck.

diffstat:

 sbin/wdogctl/wdogctl.c |  11 +++++++++--
 1 files changed, 9 insertions(+), 2 deletions(-)

diffs (53 lines):

diff -r 70709aec2bf8 -r bb60e242a3ad sbin/wdogctl/wdogctl.c
--- a/sbin/wdogctl/wdogctl.c    Tue Jan 04 23:46:34 2011 +0000
+++ b/sbin/wdogctl/wdogctl.c    Tue Jan 04 23:48:44 2011 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: wdogctl.c,v 1.18 2009/03/16 13:37:45 lukem Exp $       */
+/*     $NetBSD: wdogctl.c,v 1.19 2011/01/04 23:48:44 wiz Exp $ */
 
 /*-
  * Copyright (c) 2000 Zembu Labs, Inc.
@@ -35,7 +35,7 @@
 #include <sys/cdefs.h>
 
 #ifndef lint
-__RCSID("$NetBSD: wdogctl.c,v 1.18 2009/03/16 13:37:45 lukem Exp $");
+__RCSID("$NetBSD: wdogctl.c,v 1.19 2011/01/04 23:48:44 wiz Exp $");
 #endif
 
 
@@ -200,6 +200,8 @@
 
        if (ioctl(fd, WDOGIOC_SMODE, &wm) == -1)
                err(EXIT_FAILURE, "WDOGIOC_SMODE");
+
+       (void)close(fd);
 }
 
 void
@@ -219,6 +221,8 @@
        if (ioctl(fd, WDOGIOC_TICKLE) == -1)
                syslog(LOG_EMERG, "unable to tickle watchdog timer %s: %m",
                    wm.wm_name);
+
+       (void)close(fd);
        return;
 }
 
@@ -316,6 +320,8 @@
                err(EXIT_FAILURE, "open %s", _PATH_WATCHDOG);
        if (ioctl(fd, WDOGIOC_TICKLE) == -1)
                fprintf(stderr, "Cannot tickle timer\n");
+
+       (void)close(fd);
 }
 
 void
@@ -331,6 +337,7 @@
 
        if (ioctl(fd, WDOGIOC_WHICH, &wm) == -1) {
                printf("No watchdog timer running.\n");
+               (void)close(fd);
                return;
        }
        mode = wm.wm_mode & WDOG_MODE_MASK;