[PATCH] tools/iio: iio_event_monitor: Fix ioctl error check

From: Paul Cercueil
Date: Wed Apr 28 2021 - 11:10:05 EST


The ioctrl() call will return errno=EINVAL if the device does not
support the events interface, and not ENODEV.

Signed-off-by: Paul Cercueil <paul@xxxxxxxxxxxxxxx>
---
tools/iio/iio_event_monitor.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/iio/iio_event_monitor.c b/tools/iio/iio_event_monitor.c
index bb03859db89d..cdd9a84f18fa 100644
--- a/tools/iio/iio_event_monitor.c
+++ b/tools/iio/iio_event_monitor.c
@@ -323,7 +323,7 @@ int main(int argc, char **argv)
ret = ioctl(fd, IIO_GET_EVENT_FD_IOCTL, &event_fd);
if (ret == -1 || event_fd == -1) {
ret = -errno;
- if (ret == -ENODEV)
+ if (ret == -EINVAL)
fprintf(stderr,
"This device does not support events\n");
else
--
2.30.2