mirrors
/
linux-stable
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Releases Wiki Activity

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>
This commit is contained in:
Nick Ewalt 2018-09-17 05:39:00 -07:00 committed by Greg Kroah-Hartman
parent 912b8a811c
commit d2118f8e93
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/staging/gasket/gasket_page_table.c
View File

@ -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;