[PATCH v2] selftests/rtc:Fix a resource leak

[Zhu Jun]

The opened file should be closed before exit, otherwise resource leak
will occur that this problem was discovered by code reading

Signed-off-by: Zhu Jun <zhuj...@cmss.chinamobile.com>
---
>From a good programming practice perspective, especially in more complex 
>programs, 
explicitly freeing allocated memory is a good habit!


 tools/testing/selftests/rtc/setdate.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/testing/selftests/rtc/setdate.c 
b/tools/testing/selftests/rtc/setdate.c
index b303890b3de2..17a00affb0ec 100644
--- a/tools/testing/selftests/rtc/setdate.c
+++ b/tools/testing/selftests/rtc/setdate.c
@@ -65,6 +65,7 @@ int main(int argc, char **argv)
        retval = ioctl(fd, RTC_RD_TIME, &current);
        if (retval == -1) {
                perror("RTC_RD_TIME ioctl");
+               close(fd);
                exit(errno);
        }
 
-- 
2.17.1