[PATCH v2 2/4] media: docs: v4l2-subdev: fix typo

[Luca Ceresoli]

Fix "Helper functions exists" -> "Helper functions exist".

Signed-off-by: Luca Ceresoli <luca@xxxxxxxxxxxxxxxx>

---

This patch is new in v2
---
 Documentation/driver-api/media/v4l2-subdev.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/driver-api/media/v4l2-subdev.rst b/Documentation/driver-api/media/v4l2-subdev.rst
index 9a7dddd97f5a..9ea16a8c3bde 100644
--- a/Documentation/driver-api/media/v4l2-subdev.rst
+++ b/Documentation/driver-api/media/v4l2-subdev.rst
@@ -34,7 +34,7 @@ provides host private data for that purpose that can be accessed with
 From the bridge driver perspective, you load the sub-device module and somehow
 obtain the :c:type:`v4l2_subdev` pointer. For i2c devices this is easy: you call
 ``i2c_get_clientdata()``. For other buses something similar needs to be done.
-Helper functions exists for sub-devices on an I2C bus that do most of this
+Helper functions exist for sub-devices on an I2C bus that do most of this
 tricky work for you.
 
 Each :c:type:`v4l2_subdev` contains function pointers that sub-device drivers
-- 
2.28.0