staging: iio: Fix typo in iio

Correct spelling typo in staging/iio

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Michael Hennerich<michael.hennerich@analog.com>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/staging/iio/iio_simple_dummy_events.c b/drivers/staging/iio/iio_simple_dummy_events.c
index f85bd19..317b774 100644
--- a/drivers/staging/iio/iio_simple_dummy_events.c
+++ b/drivers/staging/iio/iio_simple_dummy_events.c
@@ -122,7 +122,7 @@
  * @private: pointer to device instance state.
  *
  * This handler is responsible for querying the device to find out what
- * event occured and for then pushing that event towards userspace.
+ * event occurred and for then pushing that event towards userspace.
  * Here only one event occurs so we push that directly on with locally
  * grabbed timestamp.
  */