Update the comment to sync with code.
Signed-off-by: Deepak Rawat <drawat@xxxxxxxxxx>
---
drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c | 22 ++++------------------
1 file changed, 4 insertions(+), 18 deletions(-)
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
index 3537f5b48b98..ce077522b2d6 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
@@ -1682,7 +1682,6 @@ static int vmw_stdu_plane_update_surface(struct vmw_private *dev_priv,
/**
* vmw_stdu_primary_plane_atomic_update - formally switches STDU to new plane
- *
* @plane: display plane
* @old_state: Only used to get crtc info
*
@@ -1702,10 +1701,7 @@ vmw_stdu_primary_plane_atomic_update(struct drm_plane *plane,
struct vmw_private *dev_priv;
int ret;
- /*
- * We cannot really fail this function, so if we do, then output an
- * error and maintain consistent atomic state.
- */
+ /* If somehow gets a device error, maintain consistent atomic state */
if (crtc && plane->state->fb) {
struct vmw_framebuffer *vfb =
vmw_framebuffer_to_vfb(plane->state->fb);
@@ -1734,12 +1730,7 @@ vmw_stdu_primary_plane_atomic_update(struct drm_plane *plane,
stdu = vmw_crtc_to_stdu(crtc);
dev_priv = vmw_priv(crtc->dev);
- /*
- * When disabling a plane, CRTC and FB should always be NULL
- * together, otherwise it's an error.
- * Here primary plane is being disable so blank the screen
- * target display unit, if not already done.
- */
+ /* Blank STDU when fb and crtc are NULL */
if (!stdu->defined)
return;
@@ -1754,20 +1745,15 @@ vmw_stdu_primary_plane_atomic_update(struct drm_plane *plane,
return;
}
+ /* In case of error vblank event is sent in vmw_du_crtc_atomic_flush */
event = crtc->state->event;
- /*
- * In case of failure and other cases, vblank event will be sent in
- * vmw_du_crtc_atomic_flush.
- */
if (event && (ret == 0)) {
struct vmw_fence_obj *fence = NULL;
struct drm_file *file_priv = event->base.file_priv;
vmw_execbuf_fence_commands(NULL, dev_priv, &fence, NULL);
- /*
- * If fence is NULL, then already sync.
- */
+ /* If fence is NULL, then already sync. */
if (fence) {
ret = vmw_event_fence_action_queue(
file_priv, fence, &event->base,
--
2.17.1
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