iio: typo in iio_chan_spec.ext_info comment

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h
index ae0cad9..2afbb6f 100644
--- a/include/linux/iio/iio.h
+++ b/include/linux/iio/iio.h
@@ -214,7 +214,7 @@
  * @event_mask:		What events can this channel produce.
  * @ext_info:		Array of extended info attributes for this channel.
  *			The array is NULL terminated, the last element should
- *			have it's name field set to NULL.
+ *			have its name field set to NULL.
  * @extend_name:	Allows labeling of channel attributes with an
  *			informative name. Note this has no effect codes etc,
  *			unlike modifiers.