Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 4.9 19/22] ntb: ntb_perf missing dmaengine_unmap_put | Date | Tue, 21 Feb 2017 14:03:33 +0100 |
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4.9-stable review patch. If anyone has any objections, please let me know.
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From: Dave Jiang <dave.jiang@intel.com>
commit 9644347c5240d0ee3ba7472ef332aaa4ff4db398 upstream.
In the normal I/O execution path, ntb_perf is missing a call to dmaengine_unmap_put() after submission. That causes us to leak unmap objects.
Signed-off-by: Dave Jiang <dave.jiang@intel.com> Fixes: 8a7b6a77 ("ntb: ntb perf tool") Signed-off-by: Jon Mason <jdmason@kudzu.us> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/ntb/test/ntb_perf.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/drivers/ntb/test/ntb_perf.c +++ b/drivers/ntb/test/ntb_perf.c @@ -265,6 +265,8 @@ static ssize_t perf_copy(struct pthr_ctx if (dma_submit_error(cookie)) goto err_set_unmap; + dmaengine_unmap_put(unmap); + atomic_inc(&pctx->dma_sync); dma_async_issue_pending(chan);
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