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Commit 85473328 authored by Imre Deak's avatar Imre Deak Committed by Inki Dae
Browse files

drm/exynos: hold event_lock while accessing pageflip_event_list 



Signed-off-by: default avatarImre Deak <imre.deak@intel.com>
Signed-off-by: default avatarInki Dae <inki.dae@samsung.com>
Signed-off-by: default avatarKyungmin Park <kyungmin.park@samsung.com>
parent fdd66e06

drivers/gpu/drm/exynos/exynos_drm_crtc.c

+5 −0
Original line number Diff line number Diff line
@@ -236,16 +236,21 @@ static int exynos_drm_crtc_page_flip(struct drm_crtc *crtc, 
			goto out;

		}



		spin_lock_irq(&dev->event_lock);

		list_add_tail(&event->base.link,

				&dev_priv->pageflip_event_list);

		spin_unlock_irq(&dev->event_lock);



		crtc->fb = fb;

		ret = exynos_drm_crtc_mode_set_base(crtc, crtc->x, crtc->y,

						    NULL);

		if (ret) {

			crtc->fb = old_fb;



			spin_lock_irq(&dev->event_lock);

			drm_vblank_put(dev, exynos_crtc->pipe);

			list_del(&event->base.link);

			spin_unlock_irq(&dev->event_lock);



			goto out;

		}