diff options
Diffstat (limited to 'tools/testing')
| -rw-r--r-- | tools/testing/selftests/watchdog/watchdog-test.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/tools/testing/selftests/watchdog/watchdog-test.c b/tools/testing/selftests/watchdog/watchdog-test.c index afff120c7be6..6ed822dc2222 100644 --- a/tools/testing/selftests/watchdog/watchdog-test.c +++ b/tools/testing/selftests/watchdog/watchdog-test.c @@ -97,6 +97,7 @@ int main(int argc, char *argv[]) int c; int oneshot = 0; char *file = "/dev/watchdog"; + struct watchdog_info info; setbuf(stdout, NULL); @@ -118,6 +119,16 @@ int main(int argc, char *argv[]) exit(-1); } + /* + * Validate that `file` is a watchdog device + */ + ret = ioctl(fd, WDIOC_GETSUPPORT, &info); + if (ret) { + printf("WDIOC_GETSUPPORT error '%s'\n", strerror(errno)); + close(fd); + exit(ret); + } + optind = 0; while ((c = getopt_long(argc, argv, sopts, lopts, NULL)) != -1) { |