Commit cd20dc3c authored Jan 23, 2018 by Dan Carpenter Committed by Jon Mason Jan 28, 2018

ntb_perf: Fix an error code in perf_copy_chunk()



We accidentally return success if dmaengine_submit() fails.  The fix is
to preserve the error code from dma_submit_error().

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>

parent ae07abdb

drivers/ntb/test/ntb_perf.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -828,7 +828,8 @@ static int perf_copy_chunk(struct perf_thread *pthr,
		tx->callback_param = pthr;
		dma_set_unmap(tx, unmap);

		if (dma_submit_error(dmaengine_submit(tx))) {
		ret = dma_submit_error(dmaengine_submit(tx));
		if (ret) {
		dmaengine_unmap_put(unmap);
		goto err_free_resource;
		}

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