Commit d2118f8e authored Sep 17, 2018 by Nick Ewalt Committed by Greg Kroah-Hartman Sep 18, 2018

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 <nicholasewalt@google.com>
Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 912b8a81

drivers/staging/gasket/gasket_page_table.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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;

Admin message