Patch "ntb: ntb_perf missing dmaengine_unmap_put" has been added to the 4.9-stable tree

This is a note to let you know that I've just added the patch titled

ntb: ntb_perf missing dmaengine_unmap_put

to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
ntb-ntb_perf-missing-dmaengine_unmap_put.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Dave Jiang <[email protected]>
Date: Mon, 30 Jan 2017 14:21:17 -0700
Subject: ntb: ntb_perf missing dmaengine_unmap_put

From: Dave Jiang <[email protected]>

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.

---
 drivers/ntb/test/ntb_perf.c |    2 ++
 1 file changed, 2 insertions(+)

@@ -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);
 

Patches currently in stable-queue which might be from [email protected] are

queue-4.9/ntb-ntb_perf-missing-dmaengine_unmap_put.patch