Subject: [PATCH 09/34] media/v4l2-core/mm: convert put_page() to put_user_page*()

From: [email-masked]
Date: Thu, 1 Aug 2019 19:19:40 -0700

From: John Hubbard <[email-masked]>

For pages that were retained via get_user_pages*(), release those pages
via the new put_user_page*() routines, instead of via put_page() or
release_pages().

This is part a tree-wide conversion, as described in commit fc1d8e7cca2d
("mm: introduce put_user_page*(), placeholder versions").

Cc: Mauro Carvalho Chehab <[email-masked]>
Cc: Kees Cook <[email-masked]>
Cc: Hans Verkuil <[email-masked]>
Cc: Sakari Ailus <[email-masked]>
Cc: Jan Kara <[email-masked]>
Cc: Robin Murphy <[email-masked]>
Cc: Souptick Joarder <[email-masked]>
Cc: Dan Williams <[email-masked]>
Cc: [email-masked]
Signed-off-by: John Hubbard <[email-masked]>
---
 drivers/media/v4l2-core/videobuf-dma-sg.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/media/v4l2-core/videobuf-dma-sg.c b/drivers/media/v4l2-core/videobuf-dma-sg.c
index 66a6c6c236a7..d6eeb437ec19 100644
--- a/drivers/media/v4l2-core/videobuf-dma-sg.c
+++ b/drivers/media/v4l2-core/videobuf-dma-sg.c
@@ -349,8 +349,7 @@ int videobuf_dma_free(struct videobuf_dmabuf *dma)
 	BUG_ON(dma->sglen);
 
 	if (dma->pages) {
-		for (i = 0; i < dma->nr_pages; i++)
-			put_page(dma->pages[i]);
+		put_user_pages(dma->pages, dma->nr_pages);
 		kfree(dma->pages);
 		dma->pages = NULL;
 	}
-- 
2.22.0

_______________________________________________
linux-arm-kernel mailing list
[email-masked]
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel