[PATCH 02/21] drm/omap: page_flip: return -EBUSY if flip pending

[Tomi Valkeinen]

The DRM documentation says:

"If a page flip is already pending, the page_flip operation must return
-EBUSY."

Currently omapdrm returns -EINVAL instead. Fix omapdrm by returning
-EBUSY.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen at ti.com>
---
 drivers/gpu/drm/omapdrm/omap_crtc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/omapdrm/omap_crtc.c 
b/drivers/gpu/drm/omapdrm/omap_crtc.c
index b0566a1ca28f..af4b230b5269 100644
--- a/drivers/gpu/drm/omapdrm/omap_crtc.c
+++ b/drivers/gpu/drm/omapdrm/omap_crtc.c
@@ -361,7 +361,7 @@ static int omap_crtc_page_flip_locked(struct drm_crtc *crtc,
        if (omap_crtc->old_fb) {
                spin_unlock_irqrestore(&dev->event_lock, flags);
                dev_err(dev->dev, "already a pending flip\n");
-               return -EINVAL;
+               return -EBUSY;
        }

        omap_crtc->event = event;
-- 
2.3.0