Much like the sync_timeline_signal(), remove the points from the
timeline so that if the callee is dropping the last reference on the
point's fence we don't end up in a deadlock in
timeline_fence_release().
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@xxxxxxxxx>
---
drivers/dma-buf/sw_sync.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/dma-buf/sw_sync.c b/drivers/dma-buf/sw_sync.c
index 32dcf7b4c935..78c1c25cab7b 100644
--- a/drivers/dma-buf/sw_sync.c
+++ b/drivers/dma-buf/sw_sync.c
@@ -325,6 +325,9 @@ static int sw_sync_debugfs_release(struct inode *inode, struct file *file)
spin_lock_irq(&obj->lock);
list_for_each_entry_safe(pt, next, &obj->pt_list, link) {
+ list_del_init(&pt->link);
+ rb_erase(&pt->node, &obj->pt_tree);
+
dma_fence_set_error(&pt->base, -ENOENT);
dma_fence_signal_locked(&pt->base);
}
--
2.20.1
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