linux-kernel - Re: [PATCH v2 3/3] staging: rtl8192u: rework init and exit function

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Date:   Thu, 24 Feb 2022 10:27:17 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     Tong Zhang <ztong0001@...il.com>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Kees Cook <keescook@...omium.org>,
        Jakub Kicinski <kuba@...nel.org>,
        Colin Ian King <colin.i.king@...glemail.com>,
        Lee Jones <lee.jones@...aro.org>,
        Saurav Girepunje <saurav.girepunje@...il.com>,
        Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>,
        Johan Hovold <johan@...nel.org>, linux-staging@...ts.linux.dev,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 3/3] staging: rtl8192u: rework init and exit function

On Wed, Feb 23, 2022 at 10:40:31PM -0800, Tong Zhang wrote:
> The init and exit functions are not releasing resource properly. An error
> can be observed when we load/unload/load r8192u_usb module due to this
> issue. This patch rework init and exit functions to do proper resource
> release on init error and module unload.
> The __exit attribute is stripped from some functions since they are now
> being used by module init functions.
> 
> [  493.068012] proc_dir_entry 'net/ieee80211' already registered
> [  493.271973]  proc_mkdir+0x18/0x20
> [  493.272136]  ieee80211_debug_init+0x28/0xde8 [r8192u_usb]
> [  493.272404]  rtl8192_usb_module_init+0x10/0x161 [r8192u_usb]
> 
> [   13.910616] proc_dir_entry 'net/rtl819xU' already registered
> [   13.918931]  proc_mkdir+0x18/0x20
> [   13.919098]  rtl8192_usb_module_init+0x142/0x16d [r8192u_usb]
> 
> Signed-off-by: Tong Zhang <ztong0001@...il.com>

Good!  Thanks!

Reviewed-by: Dan Carpenter <dan.carpenter@...cle.com>

regards,
dan carpenter