| Message ID | 20190214182456.16871-1-lionel.g.landwerlin@intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | dma-buf/sw_sync: remove points on release prior to signaling | expand |
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); }
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@intel.com> --- drivers/dma-buf/sw_sync.c | 3 +++ 1 file changed, 3 insertions(+)