linux-kernel - [PATCH v5 2/4] drm/fence: release fence reference when canceling event

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Message-Id: <1476975005-30441-3-git-send-email-gustavo@padovan.org>
Date:   Thu, 20 Oct 2016 12:50:03 -0200
From:   Gustavo Padovan <gustavo@...ovan.org>
To:     dri-devel@...ts.freedesktop.org
Cc:     linux-kernel@...r.kernel.org, Daniel Stone <daniels@...labora.com>,
        Daniel Vetter <daniel.vetter@...ll.ch>,
        Rob Clark <robdclark@...il.com>,
        Greg Hackmann <ghackmann@...gle.com>,
        John Harrison <John.C.Harrison@...el.com>,
        laurent.pinchart@...asonboard.com, seanpaul@...gle.com,
        marcheu@...gle.com, m.chehab@...sung.com,
        Sumit Semwal <sumit.semwal@...aro.org>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Gustavo Padovan <gustavo.padovan@...labora.co.uk>
Subject: [PATCH v5 2/4] drm/fence: release fence reference when canceling event

From: Gustavo Padovan <gustavo.padovan@...labora.co.uk>

If the event gets canceled we also need to put away the fence
reference it holds.

Signed-off-by: Gustavo Padovan <gustavo.padovan@...labora.co.uk>
---
 drivers/gpu/drm/drm_fops.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c
index e84faec..8bed5f4 100644
--- a/drivers/gpu/drm/drm_fops.c
+++ b/drivers/gpu/drm/drm_fops.c
@@ -663,6 +663,10 @@ void drm_event_cancel_free(struct drm_device *dev,
 		list_del(&p->pending_link);
 	}
 	spin_unlock_irqrestore(&dev->event_lock, flags);
+
+	if (p->fence)
+		fence_put(p->fence);
+
 	kfree(p);
 }
 EXPORT_SYMBOL(drm_event_cancel_free);
-- 
2.5.5