diff options
author | Devendra Naga <devendra.aaru@gmail.com> | 2012-05-17 13:37:48 +0400 |
---|---|---|
committer | Wim Van Sebroeck <wim@iguana.be> | 2012-05-23 18:27:48 +0400 |
commit | cad19fa66469d2a745fae0c168833d5d33d64489 (patch) | |
tree | 0621fd18462f9308fc0c66543d05b756a3d51557 /Documentation/watchdog | |
parent | 3c2a6186c1a69d647e3a48ad3f7f9078c451111e (diff) | |
download | linux-cad19fa66469d2a745fae0c168833d5d33d64489.tar.xz |
Documentation/watchdog: Fix the file descriptor leak when no cmdline arg given
we start a infinite loop when user gives ./watchdog-test, and when user
ctrl + c's the program, we just exit immeadiately with out closing the
filedescriptor of the watchdog device. a signal handler is used to
do the job of closing the filedescriptor and exiting the program.
Signed-off-by: Devendra Naga <devendra.aaru@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Diffstat (limited to 'Documentation/watchdog')
-rw-r--r-- | Documentation/watchdog/src/watchdog-test.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/Documentation/watchdog/src/watchdog-test.c b/Documentation/watchdog/src/watchdog-test.c index 23084f221279..73ff5cc93e05 100644 --- a/Documentation/watchdog/src/watchdog-test.c +++ b/Documentation/watchdog/src/watchdog-test.c @@ -7,6 +7,7 @@ #include <string.h> #include <unistd.h> #include <fcntl.h> +#include <signal.h> #include <sys/ioctl.h> #include <linux/types.h> #include <linux/watchdog.h> @@ -29,6 +30,14 @@ static void keep_alive(void) * The main program. Run the program with "-d" to disable the card, * or "-e" to enable the card. */ + +void term(int sig) +{ + close(fd); + fprintf(stderr, "Stopping watchdog ticks...\n"); + exit(0); +} + int main(int argc, char *argv[]) { int flags; @@ -65,6 +74,8 @@ int main(int argc, char *argv[]) fflush(stderr); } + signal(SIGINT, term); + while(1) { keep_alive(); sleep(1); |