sync_file: get rid of internal reference count.

sync_file uses the reference count of the file, the internal
kref was never getting moved past 1.

We can reintroduce this if we decide we need it later.

[airlied: fix buildbot warnings]

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Acked-by: Sumit Semwal <sumit.semwal@linaro.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170413014144.637-2-airlied@gmail.com

1 files changed, 2 insertions, 11 deletions

diff --git a/drivers/dma-buf/sync_file.c b/drivers/dma-buf/sync_file.c
index 2321035f6204..dc89b1d484e8 100644
--- a/drivers/dma-buf/sync_file.c
+++ b/drivers/dma-buf/sync_file.c
@@ -41,8 +41,6 @@ static struct sync_file *sync_file_alloc(void)
         if (IS_ERR(sync_file->file))
                 goto err;
 
-        kref_init(&sync_file->kref);
-
         init_waitqueue_head(&sync_file->wq);
 
         INIT_LIST_HEAD(&sync_file->cb.node);
@@ -277,22 +275,15 @@ err:
 
 }
 
-static void sync_file_free(struct kref *kref)
+static int sync_file_release(struct inode *inode, struct file *file)
 {
-        struct sync_file *sync_file = container_of(kref, struct sync_file,
-                                                     kref);
+        struct sync_file *sync_file = file->private_data;
 
         if (test_bit(POLL_ENABLED, &sync_file->fence->flags))
                 dma_fence_remove_callback(sync_file->fence, &sync_file->cb);
         dma_fence_put(sync_file->fence);
         kfree(sync_file);
-}
-
-static int sync_file_release(struct inode *inode, struct file *file)
-{
-        struct sync_file *sync_file = file->private_data;
 
-        kref_put(&sync_file->kref, sync_file_free);
         return 0;
 }