linux-kernel - [PATCH] aio: drop needless assignment in aio

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Date:   Mon, 14 Mar 2022 16:46:05 +0100
From:   Lukas Bulwahn <lukas.bulwahn@...il.com>
To:     Benjamin LaHaise <bcrl@...ck.org>,
        Alexander Viro <viro@...iv.linux.org.uk>, linux-aio@...ck.org,
        linux-fsdevel@...r.kernel.org
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org,
        Lukas Bulwahn <lukas.bulwahn@...il.com>
Subject: [PATCH] aio: drop needless assignment in aio_read()

Commit 84c4e1f89fef ("aio: simplify - and fix - fget/fput for io_submit()")
refactored aio_read() and some error cases into early return, which made
some intermediate assignment of the return variable needless.

Drop this needless assignment in aio_read().

No functional change. No change in resulting object code.

Signed-off-by: Lukas Bulwahn <lukas.bulwahn@...il.com>
---
I cc'ed Linus as he is the author of the referred commit, but I expect
that this clean-up just goes the usual way to Al Viro and then in some
git pull to Linus.

 fs/aio.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/fs/aio.c b/fs/aio.c
index eb0948bb74f1..7b761d9d774a 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -1552,7 +1552,6 @@ 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;
 
-- 
2.17.1