Commit a8c73c1a authored Jun 05, 2020 by Denis Efremov Committed by Jens Axboe Jun 08, 2020

io_uring: use kvfree() in io_sqe_buffer_register()



Use kvfree() to free the pages and vmas, since they are allocated by
kvmalloc_array() in a loop.

Fixes: d4ef6475 ("io_uring: avoid page allocation warnings")
Signed-off-by: Denis Efremov <efremov@linux.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20200605093203.40087-1-efremov@linux.com

parent efe68c1c

fs/io_uring.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -7171,8 +7171,8 @@ static int io_sqe_buffer_register(struct io_ring_ctx ctx, void __user arg,

		ret = 0;
		if (!pages \|\| nr_pages > got_pages) {
		kfree(vmas);
		kfree(pages);
		kvfree(vmas);
		kvfree(pages);
		pages = kvmalloc_array(nr_pages, sizeof(struct page *),
		GFP_KERNEL);
		vmas = kvmalloc_array(nr_pages,

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