Before invoke vmap, we need offer a pages pointer array which each page
need to map in vmalloc area.
But currently vmap_udmabuf only set each folio's head page into pages,
missed each offset pages when iter.
This patch set the correctly offset page in each folio into array.
Signed-off-by: Huan Yang <l...@vivo.com>
Fixes: 5e72b2b41a21 ("udmabuf: convert udmabuf driver to use folios")
---
drivers/dma-buf/udmabuf.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/dma-buf/udmabuf.c b/drivers/dma-buf/udmabuf.c
index 79845565089d..af5200e360a6 100644
--- a/drivers/dma-buf/udmabuf.c
+++ b/drivers/dma-buf/udmabuf.c
@@ -120,7 +120,8 @@ static int vmap_udmabuf(struct dma_buf *buf, struct
iosys_map *map)
return -ENOMEM;
for (pg = 0; pg < ubuf->pagecount; pg++)
- pages[pg] = &ubuf->folios[pg]->page;
+ pages[pg] = folio_page(ubuf->folios[pg],
+ ubuf->offsets[pg] >> PAGE_SHIFT);
vaddr = vm_map_ram(pages, ubuf->pagecount, -1);
kvfree(pages);
--
2.48.1
