[PATCH 05/10] staging: gasket: fix data page unmap DMA direction
From: Todd Poynor
Date: Mon Sep 17 2018 - 08:39:54 EST
From: Nick Ewalt <nicholasewalt@xxxxxxxxxx>
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 <nicholasewalt@xxxxxxxxxx>
Signed-off-by: Todd Poynor <toddpoynor@xxxxxxxxxx>
---
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 e86bdc5fc79d2..8fe27e7d1b53c 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;
--
2.19.0.397.gdd90340f6a-goog