3.16.40-rc1 review patch. If anyone has any objections, please let me know.
------------------ From: Justin Maggard <[email protected]> commit c84750906b4818d4929fbf73a4ae6c113b94f52b upstream. Add missing dmaengine_unmap_put(), so we don't OOM during RAID6 sync. Fixes: 1786b943dad0 ("async_pq_val: convert to dmaengine_unmap_data") Signed-off-by: Justin Maggard <[email protected]> Reviewed-by: Dan Williams <[email protected]> Signed-off-by: Vinod Koul <[email protected]> Signed-off-by: Ben Hutchings <[email protected]> --- crypto/async_tx/async_pq.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) --- a/crypto/async_tx/async_pq.c +++ b/crypto/async_tx/async_pq.c @@ -355,8 +355,6 @@ async_syndrome_val(struct page **blocks, dma_set_unmap(tx, unmap); async_tx_submit(chan, tx, submit); - - return tx; } else { struct page *p_src = P(blocks, disks); struct page *q_src = Q(blocks, disks); @@ -411,9 +409,11 @@ async_syndrome_val(struct page **blocks, submit->cb_param = cb_param_orig; submit->flags = flags_orig; async_tx_sync_epilog(submit); - - return NULL; + tx = NULL; } + dmaengine_unmap_put(unmap); + + return tx; } EXPORT_SYMBOL_GPL(async_syndrome_val);
