From mboxrd@z Thu Jan 1 00:00:00 1970 From: Justin Maggard Subject: [PATCH] async_pq_val: fix DMA memory leak Date: Tue, 4 Oct 2016 13:17:58 -0700 Message-ID: <20161004201758.13876-1-jmaggard@netgear.com> Return-path: Sender: linux-raid-owner@vger.kernel.org To: dan.j.williams@intel.com Cc: linux-raid@vger.kernel.org, dmaengine@vger.kernel.org, Justin Maggard List-Id: linux-raid.ids 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 --- crypto/async_tx/async_pq.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/crypto/async_tx/async_pq.c b/crypto/async_tx/async_pq.c index 08b3ac6..f83de99 100644 --- a/crypto/async_tx/async_pq.c +++ b/crypto/async_tx/async_pq.c @@ -368,8 +368,6 @@ async_syndrome_val(struct page **blocks, unsigned int offset, int disks, 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); @@ -424,9 +422,11 @@ async_syndrome_val(struct page **blocks, unsigned int offset, int disks, 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); -- 2.10.1