Commit 9d2231c5 authored by Max Kellermann's avatar Max Kellermann Committed by Al Viro
Browse files

lib/iov_iter: initialize "flags" in new pipe_buffer 



The functions copy_page_to_iter_pipe() and push_pipe() can both
allocate a new pipe_buffer, but the "flags" member initializer is
missing.

Fixes: 241699cd ("new iov_iter flavour: pipe-backed")
To: Alexander Viro <viro@zeniv.linux.org.uk>
To: linux-fsdevel@vger.kernel.org
To: linux-kernel@vger.kernel.org
Cc: stable@vger.kernel.org
Signed-off-by: default avatarMax Kellermann <max.kellermann@ionos.com>
Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent e783362e

lib/iov_iter.c

+2 −0
Original line number Diff line number Diff line
@@ -414,6 +414,7 @@ static size_t copy_page_to_iter_pipe(struct page *page, size_t offset, size_t by 
		return 0;



	buf->ops = &page_cache_pipe_buf_ops;

	buf->flags = 0;

	get_page(page);

	buf->page = page;

	buf->offset = offset;
@@ -577,6 +578,7 @@ static size_t push_pipe(struct iov_iter *i, size_t size, 
			break;



		buf->ops = &default_pipe_buf_ops;

		buf->flags = 0;

		buf->page = page;

		buf->offset = 0;

		buf->len = min_t(ssize_t, left, PAGE_SIZE);