ntb: ntb_perf missing dmaengine_unmap_put
authorDave Jiang <dave.jiang@intel.com>
Mon, 30 Jan 2017 21:21:17 +0000 (14:21 -0700)
committerJon Mason <jdmason@kudzu.us>
Fri, 17 Feb 2017 04:11:26 +0000 (23:11 -0500)
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>
drivers/ntb/test/ntb_perf.c

index e75d4fdc08663905eace859cff6cdebdb97e92b5..434e1d474f3340e1d35b48c924a6bebfbfb0fa67 100644 (file)
@@ -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);