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Commit aef6a7ee authored by Joonyoung Shim's avatar Joonyoung Shim Committed by Dave Airlie
Browse files

drm: fix page_flip error handling 



Free event and restore event_space only when page_flip->flags has
DRM_MODE_PAGE_FLIP_EVENT if page_flip() is failed.

Signed-off-by: default avatarJoonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: default avatarKyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: default avatarMichel Dänzer <michel.daenzer@amd.com>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent d6b83952

drivers/gpu/drm/drm_crtc.c

+6 −4
Original line number Diff line number Diff line
@@ -3335,11 +3335,13 @@ int drm_mode_page_flip_ioctl(struct drm_device *dev, 


	ret = crtc->funcs->page_flip(crtc, fb, e);

	if (ret) {

		if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {

			spin_lock_irqsave(&dev->event_lock, flags);

			file_priv->event_space += sizeof e->event;

			spin_unlock_irqrestore(&dev->event_lock, flags);

			kfree(e);

		}

	}



out:

	mutex_unlock(&dev->mode_config.mutex);