async_tx: fix the bug in async_tx_run_dependencies

[deliverable/linux.git] / crypto / async_tx / async_tx.c

diff --git a/crypto/async_tx/async_tx.c b/crypto/async_tx/async_tx.c
index 85eaf7b1c53153ef07bdc33efa3a9d9c6cdff839..e8362c1efa309f8e0242a255235650d953aeca51 100644 (file)
--- a/crypto/async_tx/async_tx.c
+++ b/crypto/async_tx/async_tx.c
@@ -137,7 +137,8 @@ async_tx_run_dependencies(struct dma_async_tx_descriptor *tx)
                spin_lock_bh(&next->lock);
                next->parent = NULL;
                _next = next->next;
-               next->next = NULL;
+               if (_next && _next->chan == chan)
+                       next->next = NULL;
                spin_unlock_bh(&next->lock);
 
                next->tx_submit(next);