diff options
| -rw-r--r-- | Documentation/watchdog/src/watchdog-test.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/Documentation/watchdog/src/watchdog-test.c b/Documentation/watchdog/src/watchdog-test.c index c69153913722..6983d05097e2 100644 --- a/Documentation/watchdog/src/watchdog-test.c +++ b/Documentation/watchdog/src/watchdog-test.c @@ -2,6 +2,7 @@ * Watchdog Driver Test Program */ +#include <errno.h> #include <stdio.h> #include <stdlib.h> #include <string.h> @@ -35,9 +36,13 @@ static void keep_alive(void) static void term(int sig) { - write(fd, &v, 1); + int ret = write(fd, &v, 1); + close(fd); - printf("\nStopping watchdog ticks...\n"); + if (ret < 0) + printf("\nStopping watchdog ticks failed (%d)...\n", errno); + else + printf("\nStopping watchdog ticks...\n"); exit(0); } @@ -45,6 +50,7 @@ int main(int argc, char *argv[]) { int flags; unsigned int ping_rate = 1; + int ret; setbuf(stdout, NULL); @@ -91,7 +97,9 @@ int main(int argc, char *argv[]) sleep(ping_rate); } end: - write(fd, &v, 1); + ret = write(fd, &v, 1); + if (ret < 0) + printf("Stopping watchdog ticks failed (%d)...\n", errno); close(fd); return 0; } |