linux-kernel - Re: [v2] wifi: rtlwifi: fix incorrect error codes in rtl_debugfs_set_write

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Message-ID: <168027439802.32751.12727089467874347568.kvalo@kernel.org>
Date:   Fri, 31 Mar 2023 14:53:19 +0000 (UTC)
From:   Kalle Valo <kvalo@...nel.org>
To:     Wei Chen <harperchen1110@...il.com>
Cc:     pkshih@...ltek.com, davem@...emloft.net, edumazet@...gle.com,
        kuba@...nel.org, pabeni@...hat.com, linux-wireless@...r.kernel.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        Wei Chen <harperchen1110@...il.com>
Subject: Re: [v2] wifi: rtlwifi: fix incorrect error codes in
 rtl_debugfs_set_write_reg()

Wei Chen <harperchen1110@...il.com> wrote:

> If there is a failure during copy_from_user or user-provided data buffer is
> invalid, rtl_debugfs_set_write_reg should return negative error code instead
> of a positive value count.
> 
> Fix this bug by returning correct error code. Moreover, the check of buffer
> against null is removed since it will be handled by copy_from_user.
> 
> Fixes: 610247f46feb ("rtlwifi: Improve debugging by using debugfs")
> Signed-off-by: Wei Chen <harperchen1110@...il.com>
> Reviewed-by: Simon Horman <simon.horman@...igine.com>

Patch applied to wireless-next.git, thanks.

5dbe1f8eb8c5 wifi: rtlwifi: fix incorrect error codes in rtl_debugfs_set_write_reg()

-- 
https://patchwork.kernel.org/project/linux-wireless/patch/20230326054217.93492-1-harperchen1110@gmail.com/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches