Fix spelling errors

clients/eventdemo.c

@@ -210,7 +210,7 @@ key_handler(struct window *window, struct input *input, uint32_t time,
  * \brief CALLBACK function, Wayland informs about button event
  * \param widget widget
  * \param input input device that caused the button event
- * \param time time the event happend
+ * \param time time the event happened
  * \param button button
  * \param state pressed or released
  * \param data user data associated to the window
@@ -259,7 +259,7 @@ axis_handler(struct widget *widget, struct input *input, uint32_t time,
  * \brief CALLBACK function, Waylands informs about pointer motion
  * \param widget widget
  * \param input input device that caused the motion event
- * \param time time the event happend
+ * \param time time the event happened
  * \param x absolute x position
  * \param y absolute y position
  * \param sx x position relative to the window

protocol/text.xml

@@ -97,7 +97,7 @@
       <description summary="pre-edit">
         Notify when a new composing text (pre-edit) should be set around the
         current cursor position. Any previously set composing text should
-        be removed. It also sets the cursor positon (as byte index) relative
+        be removed. It also sets the cursor position (as byte index) relative
         to the start of the composing text.
       </description>
       <arg name="text" type="string"/>

src/compositor-drm.c

@@ -667,7 +667,7 @@ drm_output_prepare_overlay_surface(struct weston_output *output_base,
 
 	/*
 	 * Calculate the source & dest rects properly based on actual
-	 * postion (note the caller has called weston_surface_update_transform()
+	 * position (note the caller has called weston_surface_update_transform()
 	 * for us already).
 	 */
 	pixman_region32_init(&dest_rect);