Re: [PATCH] aio: remove redundant assignment to variable ret

From: Jeff Moyer
Date: Thu Aug 22 2019 - 09:46:22 EST


Colin King <colin.king@xxxxxxxxxxxxx> writes:

> From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
>
> The variable ret is being set to -EINVAL however this is never read
> and later it is being reassigned to a new value. The assignment is
> redundant and hence can be removed.
>
> Addresses-Coverity: ("Unused Value")
> Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
> ---
> fs/aio.c | 1 -
> 1 file changed, 1 deletion(-)
>
> diff --git a/fs/aio.c b/fs/aio.c
> index f9f441b59966..3e290dfac10a 100644
> --- a/fs/aio.c
> +++ b/fs/aio.c
> @@ -1528,7 +1528,6 @@ static int aio_read(struct kiocb *req, const struct iocb *iocb,
> file = req->ki_filp;
> if (unlikely(!(file->f_mode & FMODE_READ)))
> return -EBADF;
> - ret = -EINVAL;
> if (unlikely(!file->f_op->read_iter))
> return -EINVAL;

Acked-by: Jeff Moyer <jmoyer@xxxxxxxxxx>