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| author | Sascha Hauer <s.hauer@pengutronix.de> | 2012-07-03 10:55:40 +0200 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2012-07-08 20:02:24 +0100 |
| commit | 46b24311ccc8b37da9e6e006c6158229a5354268 (patch) | |
| tree | 7ff47f0e57a889c74331e6a903ab2f6acbcedd88 | |
| parent | a91aff1c09fc41a55ccaa115763ff77e36b527d3 (diff) | |
| download | linux-46b24311ccc8b37da9e6e006c6158229a5354268.tar.bz2 | |
iio: Fix unitialized use of list
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@pengutronix.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| -rw-r--r-- | drivers/iio/industrialio-event.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/iio/industrialio-event.c b/drivers/iio/industrialio-event.c index b49059de5d02..fa6543bf6731 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; |