From: Devendra Naga <devendra.aaru@gmail.com>
Date: Mon, 14 May 2012 18:12:02 +0000 (+0530)
Subject: Documentation/watchdog: close the fd when cmdline arg given
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=3c2a6186c1a69d647e3a48ad3f7f9078c451111e;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

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 63fdc34ceb98..23084f221279 100644
--- a/Documentation/watchdog/src/watchdog-test.c
+++ b/Documentation/watchdog/src/watchdog-test.c
@@ -47,18 +47,18 @@ int main(int argc, char *argv[])
 	    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 @@ int main(int argc, char *argv[])
 	keep_alive();
 	sleep(1);
     }
+end:
+    close(fd);
+    return 0;
 }