[PATCH v2 1/1] rtc: rtctest: Improve support detection

[Lukáš Doktor]

The rtc-generic and opal-rtc are failing to run this test as they do not
support all the features. Let's treat the error returns and skip to the
following test.

Theoretically the test_DATE should be also adjusted, but as it's enabled
on demand I think it makes sense to fail in such case.

Signed-off-by: Lukáš Doktor <ldok...@redhat.com>
---
 tools/testing/selftests/timers/rtctest.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/timers/rtctest.c 
b/tools/testing/selftests/timers/rtctest.c
index f61170f..411eff6 100644
--- a/tools/testing/selftests/timers/rtctest.c
+++ b/tools/testing/selftests/timers/rtctest.c
@@ -221,6 +221,11 @@ int main(int argc, char **argv)
        /* Read the current alarm settings */
        retval = ioctl(fd, RTC_ALM_READ, &rtc_tm);
        if (retval == -1) {
+               if (errno == EINVAL) {
+                       fprintf(stderr,
+                                       "\n...EINVAL reading current alarm 
setting.\n");
+                       goto test_PIE;
+               }
                perror("RTC_ALM_READ ioctl");
                exit(errno);
        }
@@ -231,7 +236,7 @@ int main(int argc, char **argv)
        /* Enable alarm interrupts */
        retval = ioctl(fd, RTC_AIE_ON, 0);
        if (retval == -1) {
-               if (errno == EINVAL) {
+               if (errno == EINVAL || errno == EIO) {
                        fprintf(stderr,
                                "\n...Alarm IRQs not supported.\n");
                        goto test_PIE;
-- 
2.9.4