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io_uring: Fix __io_uring_register() false success

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[ Upstream commit a278682dad ]

If io_copy_iov() fails, it will break the loop and report success,
albeit partially completed operation.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Pavel Begunkov
2019-05-26 12:35:47 +03:00
committed by Greg Kroah-Hartman
parent 84296dc648
commit fd670f49dd
1 changed files with 1 additions and 1 deletions
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2
fs/io_uring.c
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@@ -2506,7 +2506,7 @@ static int io_sqe_buffer_register(struct io_ring_ctx *ctx, void __user *arg,
ret = io_copy_iov(ctx, &iov, arg, i); ret = io_copy_iov(ctx, &iov, arg, i);
if (ret) if (ret)
break; goto err;
/* /*
* Don't impose further limits on the size and buffer * Don't impose further limits on the size and buffer