From 847b19a39e4c9b5e74c40f0842c48b41664cb43c Mon Sep 17 00:00:00 2001
From: Jammy Zhou <Jammy.Zhou@amd.com>
Date: Wed, 21 Jan 2015 18:35:48 +0800
Subject: [PATCH] dma-buf/fence: don't wait when specified timeout is zero
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When specified timeout is zero for fence_wait_timeout, just check if the fence
is signaled or not without wait.

Signed-off-by: Jammy Zhou <Jammy.Zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-By: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
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