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

[<gregkh@linuxfoundation.org>]

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 <stable@vger.kernel.org> know about it.


>From 9644347c5240d0ee3ba7472ef332aaa4ff4db398 Mon Sep 17 00:00:00 2001
From: Dave Jiang <dave.jiang@intel.com>
Date: Mon, 30 Jan 2017 14:21:17 -0700
Subject: ntb: ntb_perf missing dmaengine_unmap_put

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);
 


Patches currently in stable-queue which might be from dave.jiang@intel.com are

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