From: Gustavo Padovan <gustavo.padovan@xxxxxxxxxxxxxxx>
This reverts commit ecebca79f6976ddaddfd054d699272515869ea28.
Do not enable fence callback on poll() when using fence_array causes the
fence_array to not signal.
For now we will revert the change and enable signaling everytime time
poll is called with timeout=0 as well.
Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Gustavo Padovan <gustavo.padovan@xxxxxxxxxxxxxxx>
---
drivers/dma-buf/sync_file.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/dma-buf/sync_file.c b/drivers/dma-buf/sync_file.c
index 69d8ef9..6d802f2 100644
--- a/drivers/dma-buf/sync_file.c
+++ b/drivers/dma-buf/sync_file.c
@@ -308,8 +308,7 @@ static unsigned int sync_file_poll(struct file *file, poll_table *wait)
poll_wait(file, &sync_file->wq, wait);
- if (!poll_does_not_wait(wait) &&
- !test_and_set_bit(POLL_ENABLED, &sync_file->fence->flags)) {
+ if (!test_and_set_bit(POLL_ENABLED, &sync_file->fence->flags)) {
if (dma_fence_add_callback(sync_file->fence, &sync_file->cb,
fence_check_cb_func) < 0)
wake_up_all(&sync_file->wq);
--
2.5.5
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