[Linaro-mm-sig] [PATCH 4/4] 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 --- drivers/base/dma-buf.c | 5 +++-- 1 files 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)