| From 7ed5e01835e4d8057c47570616cfcf2079b446c6 Mon Sep 17 00:00:00 2001 |
| From: Dave Jiang <dave.jiang@intel.com> |
| Date: Mon, 30 Jan 2017 14:21:17 -0700 |
| Subject: [PATCH] ntb: ntb_perf missing dmaengine_unmap_put |
| |
| 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: Paul Gortmaker <paul.gortmaker@windriver.com> |
| |
| diff --git a/drivers/ntb/test/ntb_perf.c b/drivers/ntb/test/ntb_perf.c |
| index 6a50f20bf1cd..0549462dd3a6 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); |
| |
| -- |
| 2.12.0 |
| |
