The dev_attr list is initialized in __iio_add_event_config_attrs which
is called only when indio_dev->channels is true. Nevertheless the list
is used unconditionally later in iio_device_register_eventset which
results in a NULL pointer exception. To fix this unconditionally
initialize the list in iio_device_register_eventset.
Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
---
drivers/iio/industrialio-event.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/iio/industrialio-event.c b/drivers/iio/industrialio-event.c
index b49059d..fa6543b 100644
--- a/drivers/iio/industrialio-event.c
+++ b/drivers/iio/industrialio-event.c
@@ -345,7 +345,6 @@ static inline int __iio_add_event_config_attrs(struct iio_dev *indio_dev)
{
int j, ret, attrcount = 0;
- INIT_LIST_HEAD(&indio_dev->event_interface->dev_attr_list);
/* Dynically created from the channels array */
for (j = 0; j < indio_dev->num_channels; j++) {
ret = iio_device_add_event_sysfs(indio_dev,
@@ -396,6 +395,8 @@ int iio_device_register_eventset(struct iio_dev *indio_dev)
goto error_ret;
}
+ INIT_LIST_HEAD(&indio_dev->event_interface->dev_attr_list);
+
iio_setup_ev_int(indio_dev->event_interface);
if (indio_dev->info->event_attrs != NULL) {
attr = indio_dev->info->event_attrs->attrs;
--
1.7.10
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