2 files changed, 10 insertions, 3 deletions

diff --git a/drivers/iio/industrialio-event.c b/drivers/iio/industrialio-event.c
index 0c1e37e3120a..1290290adcb5 100644
--- a/drivers/iio/industrialio-event.c
+++ b/drivers/iio/industrialio-event.c
@@ -327,9 +327,15 @@ static int iio_device_add_event(struct iio_dev *indio_dev,
         for_each_set_bit(i, mask, sizeof(*mask)*8) {
                 if (i >= ARRAY_SIZE(iio_ev_info_text))
                         return -EINVAL;
-                postfix = kasprintf(GFP_KERNEL, "%s_%s_%s",
-                                iio_ev_type_text[type], iio_ev_dir_text[dir],
-                                iio_ev_info_text[i]);
+                if (dir != IIO_EV_DIR_NONE)
+                        postfix = kasprintf(GFP_KERNEL, "%s_%s_%s",
+                                        iio_ev_type_text[type],
+                                        iio_ev_dir_text[dir],
+                                        iio_ev_info_text[i]);
+                else
+                        postfix = kasprintf(GFP_KERNEL, "%s_%s",
+                                        iio_ev_type_text[type],
+                                        iio_ev_info_text[i]);
                 if (postfix == NULL)
                         return -ENOMEM;
 
diff --git a/include/linux/iio/types.h b/include/linux/iio/types.h
index b3a241d53b54..52cb5329407b 100644
--- a/include/linux/iio/types.h
+++ b/include/linux/iio/types.h
@@ -86,6 +86,7 @@ enum iio_event_direction {
         IIO_EV_DIR_EITHER,
         IIO_EV_DIR_RISING,
         IIO_EV_DIR_FALLING,
+        IIO_EV_DIR_NONE,
 };
 
 #define IIO_VAL_INT 1