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ntb: ntb_perf missing dmaengine_unmap_put

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commit 9644347c52 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>
This commit is contained in:
Dave Jiang
2017-01-30 14:21:17 -07:00
committed by Greg Kroah-Hartman
parent 43325382fc
commit f420260150
1 changed files with 2 additions and 0 deletions
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2
drivers/ntb/test/ntb_perf.c
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@@ -265,6 +265,8 @@ static ssize_t perf_copy(struct pthr_ctx *pctx, char __iomem *dst,
if (dma_submit_error(cookie))
goto err_set_unmap;
dmaengine_unmap_put(unmap);
atomic_inc(&pctx->dma_sync);
dma_async_issue_pending(chan);