drm/irq: Document return values more consistently
Some of the functions are documented inconsistently. Add Returns:
sections where missing and use consistent style to describe the return
value.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c
index c393f0c..05b939e 100644
--- a/drivers/gpu/drm/drm_irq.c
+++ b/drivers/gpu/drm/drm_irq.c
@@ -1006,6 +1006,9 @@
* drm_vblank_enable - enable the vblank interrupt on a CRTC
* @dev: DRM device
* @pipe: CRTC index
+ *
+ * Returns:
+ * Zero on success or a negative error code on failure.
*/
static int drm_vblank_enable(struct drm_device *dev, unsigned int pipe)
{
@@ -1050,7 +1053,7 @@
* This is the legacy version of drm_crtc_vblank_get().
*
* Returns:
- * Zero on success, nonzero on failure.
+ * Zero on success or a negative error code on failure.
*/
int drm_vblank_get(struct drm_device *dev, unsigned int pipe)
{
@@ -1090,7 +1093,7 @@
* This is the native kms version of drm_vblank_get().
*
* Returns:
- * Zero on success, nonzero on failure.
+ * Zero on success or a negative error code on failure.
*/
int drm_crtc_vblank_get(struct drm_crtc *crtc)
{
