linux-kernel - [RFC 08/29] staging/android: Remove WARN_ON_ONCE when releasing sync

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Date:	Fri, 15 Jan 2016 12:55:18 -0200
From:	Gustavo Padovan <gustavo@...ovan.org>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	linux-kernel@...r.kernel.org, devel@...verdev.osuosl.org,
	dri-devel@...ts.freedesktop.org, daniels@...labora.com,
	Arve Hjønnevåg <arve@...roid.com>,
	Riley Andrews <riandrews@...roid.com>,
	Daniel Vetter <daniel.vetter@...ll.ch>,
	Rob Clark <robdclark@...il.com>,
	Greg Hackmann <ghackmann@...gle.com>,
	John Harrison <John.C.Harrison@...el.com>,
	Maarten Lankhorst <maarten.lankhorst@...onical.com>,
	Gustavo Padovan <gustavo.padovan@...labora.co.uk>
Subject: [RFC 08/29] staging/android: Remove WARN_ON_ONCE when releasing sync_fence

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

There isn't any problem on removing the sync_pts from the active_list
when the fence is released. If the user decides to close the fence before
it is signaled we should do it and not warn about anything.

Signed-off-by: Gustavo Padovan <gustavo.padovan@...labora.co.uk>
---
 drivers/staging/android/sync.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/android/sync.c b/drivers/staging/android/sync.c
index 5028847..273aa4b 100644
--- a/drivers/staging/android/sync.c
+++ b/drivers/staging/android/sync.c
@@ -432,8 +432,9 @@ static void sync_fence_release(struct fence *fence)
 
 	spin_lock_irqsave(fence->lock, flags);
 	list_del(&pt->child_list);
-	if (WARN_ON_ONCE(!list_empty(&pt->active_list)))
+	if (!list_empty(&pt->active_list))
 		list_del(&pt->active_list);
+
 	spin_unlock_irqrestore(fence->lock, flags);
 
 	sync_timeline_put(parent);
-- 
2.5.0