linux-kernel - Re: [PATCH] io_uring: Fix uninitialized use of ret in io_eventfd

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Message-ID: <ff729ee0-fbc0-bb6f-d638-cc33dd4734a6@gnuweeb.org>
Date:   Wed, 9 Feb 2022 18:06:15 +0700
From:   Ammar Faizi <ammarfaizi2@...weeb.org>
To:     Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>, axboe@...nel.dk
Cc:     asml.silence@...il.com, io-uring@...r.kernel.org,
        linux-kernel@...r.kernel.org, Abaci Robot <abaci@...ux.alibaba.com>
Subject: Re: [PATCH] io_uring: Fix uninitialized use of ret in
 io_eventfd_register()

On 2/9/22 5:26 PM, Jiapeng Chong wrote:
> In some scenarios, ret is not assigned in the whole process, so it
> needs to be initialized at the beginning.
> 
> Clean up the following clang warning:
> 
> fs/io_uring.c:9373:13: note: initialize the variable 'ret' to silence
> this warning.
> 
> Reported-by: Abaci Robot <abaci@...ux.alibaba.com>
> Signed-off-by: Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
> ---

This is already fixed in commit
4c65723081332607ca331072b0f8a90189e2e447 ("io_uring: Fix use of uninitialized ret in io_eventfd_register()")

https://lore.kernel.org/all/20220207162410.1013466-1-nathan@kernel.org/T/

https://github.com/torvalds/linux/commit/4c65723081332607ca331072b0f8a90189e2e447.patch

-- 
Ammar Faizi