staging: iio: Function iio_get_new_idr_val() return negative value if fails.
Function iio_get_new_idr_val() return negative value if fails.
So, only error when ret < 0 in iio_device_register_eventset().
Signed-off-by: Sonic Zhang <sonic.adi@gmail.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/staging/iio/industrialio-core.c b/drivers/staging/iio/industrialio-core.c
index 37f58f6..5af1a47 100644
--- a/drivers/staging/iio/industrialio-core.c
+++ b/drivers/staging/iio/industrialio-core.c
@@ -537,6 +537,7 @@
sysfs_remove_group(&dev_info->dev.kobj, dev_info->attrs);
}
+/* This function return negative value if fails. */
int iio_get_new_idr_val(struct idr *this_idr)
{
int ret;
@@ -660,7 +661,7 @@
for (i = 0; i < dev_info->num_interrupt_lines; i++) {
dev_info->event_interfaces[i].owner = dev_info->driver_module;
ret = iio_get_new_idr_val(&iio_event_idr);
- if (ret)
+ if (ret < 0)
goto error_free_setup_ev_ints;
else
dev_info->event_interfaces[i].id = ret;