From d2118f8e93dfc41ab660fb97593dbd6ebdd11f7e Mon Sep 17 00:00:00 2001 From: Nick Ewalt Date: Mon, 17 Sep 2018 05:39:00 -0700 Subject: [PATCH] staging: gasket: fix data page unmap DMA direction The DMA direction supplied to dma_unmap_page should match the corresponding dma_map_page call, which is mapped bi-directional. Signed-off-by: Nick Ewalt Signed-off-by: Todd Poynor Signed-off-by: Greg Kroah-Hartman --- drivers/staging/gasket/gasket_page_table.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/gasket/gasket_page_table.c b/drivers/staging/gasket/gasket_page_table.c index e86bdc5fc79d..8fe27e7d1b53 100644 --- a/drivers/staging/gasket/gasket_page_table.c +++ b/drivers/staging/gasket/gasket_page_table.c @@ -612,7 +612,7 @@ static void gasket_perform_unmapping(struct gasket_page_table *pg_tbl, if (ptes[i].status == PTE_INUSE) { if (ptes[i].dma_addr) { dma_unmap_page(pg_tbl->device, ptes[i].dma_addr, - PAGE_SIZE, DMA_FROM_DEVICE); + PAGE_SIZE, DMA_BIDIRECTIONAL); } if (gasket_release_page(ptes[i].page)) --pg_tbl->num_active_pages; -- 2.30.2