diff options
| author | Jens Axboe <axboe@kernel.dk> | 2021-03-09 07:02:21 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-03-10 07:28:43 -0700 |
| commit | 93e68e036c2fc1ce18e784418e4e19975a5882b4 (patch) | |
| tree | 7471852a31bcc994b2753d46a0021c0632f8ba63 /fs/io_uring.c | |
| parent | 70e35125093b05b0e607ba1f5358ddf76946756c (diff) | |
io_uring: move all io_kiocb init early in io_init_req()
If we hit an error path in the function, make sure that the io_kiocb is
fully initialized at that point so that freeing the request always sees
a valid state.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'fs/io_uring.c')
| -rw-r--r-- | fs/io_uring.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/fs/io_uring.c b/fs/io_uring.c index f7153483a3ac..0f18e4a7bd08 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -6327,6 +6327,9 @@ static int io_init_req(struct io_ring_ctx *ctx, struct io_kiocb *req, refcount_set(&req->refs, 2); req->task = current; req->result = 0; + req->work.list.next = NULL; + req->work.creds = NULL; + req->work.flags = 0; /* enforce forwards compatibility on users */ if (unlikely(sqe_flags & ~SQE_VALID_FLAGS)) { @@ -6344,17 +6347,13 @@ static int io_init_req(struct io_ring_ctx *ctx, struct io_kiocb *req, !io_op_defs[req->opcode].buffer_select) return -EOPNOTSUPP; - req->work.list.next = NULL; personality = READ_ONCE(sqe->personality); if (personality) { req->work.creds = xa_load(&ctx->personalities, personality); if (!req->work.creds) return -EINVAL; get_cred(req->work.creds); - } else { - req->work.creds = NULL; } - req->work.flags = 0; state = &ctx->submit_state; /* |