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authorAndrey Smirnov <andrew.smirnov@gmail.com>2016-06-21 09:22:49 +0200
committerAlexandre Belloni <alexandre.belloni@free-electrons.com>2016-06-26 23:43:49 +0200
commit519efa98051717479ff3d0b6be996e112e7a87ff (patch)
treed9b58b7cdaa631df07249ba34f2d70bda3140846
parentrtc: rtctest: Change alarm IRQ support detection (diff)
downloadlinux-519efa98051717479ff3d0b6be996e112e7a87ff.tar.xz
linux-519efa98051717479ff3d0b6be996e112e7a87ff.zip
rtc: rtctest: Change no IRQ detection for RTC_IRQP_READ
A call to ioctl(..., RTC_IRQP_READ, ...) should never result in ENOTTY. All new style RTC drivers implement it and all of the old style drivers return EINVAL when they don't support periodic IRQs. Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
-rw-r--r--tools/testing/selftests/timers/rtctest.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/testing/selftests/timers/rtctest.c b/tools/testing/selftests/timers/rtctest.c
index 0cb46285ccf4..97beadf548b0 100644
--- a/tools/testing/selftests/timers/rtctest.c
+++ b/tools/testing/selftests/timers/rtctest.c
@@ -200,7 +200,7 @@ test_PIE:
retval = ioctl(fd, RTC_IRQP_READ, &tmp);
if (retval == -1) {
/* not all RTCs support periodic IRQs */
- if (errno == ENOTTY) {
+ if (errno == EINVAL) {
fprintf(stderr, "\nNo periodic IRQ support\n");
goto done;
}