From: Dave Jiang <dave.jiang@intel.com>
Date: Mon, 30 Jan 2017 21:21:17 +0000 (-0700)
Subject: ntb: ntb_perf missing dmaengine_unmap_put
X-Git-Tag: v4.14-rc1~1537^2~2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=9644347c5240d0ee3ba7472ef332aaa4ff4db398;p=platform%2Fkernel%2Flinux-rpi.git

ntb: ntb_perf missing dmaengine_unmap_put

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>
---

diff --git a/drivers/ntb/test/ntb_perf.c b/drivers/ntb/test/ntb_perf.c
index e75d4fd..434e1d4 100644
--- 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 *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);