tree 275bfcdb142a92ea347d264b6b37b17c98d41733
parent c5d2b9f444b8d9f5ad7c5e583686c119ba3a9ba7
author Dan Williams <dan.j.williams@intel.com> 1190406424 -0700
committer Dan Williams <dan.j.williams@intel.com> 1190654786 -0700

async_tx: fix dma_wait_for_async_tx

Fix dma_wait_for_async_tx to not loop forever in the case where a
dependency chain is longer than two entries.  This condition will not
happen with current in-kernel drivers, but fix it for future drivers.

Found-by: Saeed Bishara <saeed.bishara@gmail.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>