2019-08-22 12:45:24

by Colin King

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

From: Colin Ian King <[email protected]>

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 <[email protected]>
---
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;

--
2.20.1

2019-08-22 17:11:26

by Jeff Moyer

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

Colin King <[email protected]> writes:

> From: Colin Ian King <[email protected]>
>
> 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 <[email protected]>
> ---
> 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 <[email protected]>