From 2ed9201bdd9a8e462d768a838fb2bc944c6887a4 Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Date: Thu, 26 Jan 2012 12:27:25 +0100
Subject: [PATCH] dma-buf: Move code out of mutex-protected section in
 dma_buf_attach()

Some fields can be set without mutex protection. Initialize them before
locking the mutex.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
---
 drivers/base/dma-buf.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/base/dma-buf.c b/drivers/base/dma-buf.c
index 97450a5..8afe2dd 100644
--- a/drivers/base/dma-buf.c
+++ b/drivers/base/dma-buf.c
@@ -192,10 +192,11 @@ struct dma_buf_attachment *dma_buf_attach(struct dma_buf *dmabuf,
 	if (attach == NULL)
 		return ERR_PTR(-ENOMEM);
 
-	mutex_lock(&dmabuf->lock);
-
 	attach->dev = dev;
 	attach->dmabuf = dmabuf;
+
+	mutex_lock(&dmabuf->lock);
+
 	if (dmabuf->ops->attach) {
 		ret = dmabuf->ops->attach(dmabuf, dev, attach);
 		if (ret)
-- 
2.7.4