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-rw-r--r--tools/testing/selftests/watchdog/watchdog-test.c61
1 files changed, 34 insertions, 27 deletions
diff --git a/tools/testing/selftests/watchdog/watchdog-test.c b/tools/testing/selftests/watchdog/watchdog-test.c
index 6983d05097e2..a74c9d739d07 100644
--- a/tools/testing/selftests/watchdog/watchdog-test.c
+++ b/tools/testing/selftests/watchdog/watchdog-test.c
@@ -24,9 +24,11 @@ const char v = 'V';
static void keep_alive(void)
{
int dummy;
+ int ret;
- printf(".");
- ioctl(fd, WDIOC_KEEPALIVE, &dummy);
+ ret = ioctl(fd, WDIOC_KEEPALIVE, &dummy);
+ if (!ret)
+ printf(".");
}
/*
@@ -51,6 +53,7 @@ int main(int argc, char *argv[])
int flags;
unsigned int ping_rate = 1;
int ret;
+ int i;
setbuf(stdout, NULL);
@@ -61,31 +64,35 @@ int main(int argc, char *argv[])
exit(-1);
}
- if (argc > 1) {
- if (!strncasecmp(argv[1], "-d", 2)) {
- flags = WDIOS_DISABLECARD;
- ioctl(fd, WDIOC_SETOPTIONS, &flags);
- printf("Watchdog card disabled.\n");
- goto end;
- } else if (!strncasecmp(argv[1], "-e", 2)) {
- flags = WDIOS_ENABLECARD;
- ioctl(fd, WDIOC_SETOPTIONS, &flags);
- printf("Watchdog card enabled.\n");
- goto end;
- } else if (!strncasecmp(argv[1], "-t", 2) && argv[2]) {
- flags = atoi(argv[2]);
- ioctl(fd, WDIOC_SETTIMEOUT, &flags);
- printf("Watchdog timeout set to %u seconds.\n", flags);
- goto end;
- } else if (!strncasecmp(argv[1], "-p", 2) && argv[2]) {
- ping_rate = strtoul(argv[2], NULL, 0);
- printf("Watchdog ping rate set to %u seconds.\n", ping_rate);
- } else {
- printf("-d to disable, -e to enable, -t <n> to set " \
- "the timeout,\n-p <n> to set the ping rate, and \n");
- printf("run by itself to tick the card.\n");
- goto end;
- }
+ for (i = 1; i < argc; i++) {
+ if (!strncasecmp(argv[i], "-d", 2)) {
+ flags = WDIOS_DISABLECARD;
+ ret = ioctl(fd, WDIOC_SETOPTIONS, &flags);
+ if (!ret)
+ printf("Watchdog card disabled.\n");
+ } else if (!strncasecmp(argv[i], "-e", 2)) {
+ flags = WDIOS_ENABLECARD;
+ ret = ioctl(fd, WDIOC_SETOPTIONS, &flags);
+ if (!ret)
+ printf("Watchdog card enabled.\n");
+ } else if (!strncasecmp(argv[i], "-t", 2) && argv[2]) {
+ flags = atoi(argv[i + 1]);
+ ret = ioctl(fd, WDIOC_SETTIMEOUT, &flags);
+ if (!ret)
+ printf("Watchdog timeout set to %u seconds.\n", flags);
+ i++;
+ } else if (!strncasecmp(argv[i], "-p", 2) && argv[2]) {
+ ping_rate = strtoul(argv[i + 1], NULL, 0);
+ printf("Watchdog ping rate set to %u seconds.\n", ping_rate);
+ i++;
+ } else {
+ printf("-d to disable, -e to enable, -t <n> to set "
+ "the timeout,\n-p <n> to set the ping rate, and ");
+ printf("run by itself to tick the card.\n");
+ printf("Parameters are parsed left-to-right in real-time.\n");
+ printf("Example: %s -d -t 10 -p 5 -e\n", argv[0]);
+ goto end;
+ }
}
printf("Watchdog Ticking Away!\n");