linux-kernel - Re: [PATCH v1] drivers/net: intel: iwlwifi: fix two parameters check in iwl_mei_dbgfs

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Date:   Sun, 13 Aug 2023 15:27:38 +0000
From:   "Greenman, Gregory" <gregory.greenman@...el.com>
To:     "kvalo@...nel.org" <kvalo@...nel.org>,
        "duminjie@...o.com" <duminjie@...o.com>,
        "sfr@...b.auug.org.au" <sfr@...b.auug.org.au>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>
CC:     "opensource.kernel@...o.com" <opensource.kernel@...o.com>
Subject: Re: [PATCH v1] drivers/net: intel: iwlwifi: fix two parameters check
 in iwl_mei_dbgfs_register()

Hi,

On Wed, 2023-07-12 at 21:14 +0800, Minjie Du wrote:
> Make IS_ERR() judge the debugfs_create_dir() function return
> in iwl_mei_dbgfs_register().
> 
> Signed-off-by: Minjie Du <duminjie@...o.com>
> ---
>  drivers/net/wireless/intel/iwlwifi/mei/main.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/net/wireless/intel/iwlwifi/mei/main.c b/drivers/net/wireless/intel/iwlwifi/mei/main.c
> index 54445f39f..e5d203a62 100644
> --- a/drivers/net/wireless/intel/iwlwifi/mei/main.c
> +++ b/drivers/net/wireless/intel/iwlwifi/mei/main.c
> @@ -1888,7 +1888,7 @@ static void iwl_mei_dbgfs_register(struct iwl_mei *mei)
>  {
>         mei->dbgfs_dir = debugfs_create_dir(KBUILD_MODNAME, NULL);
>  
> -       if (!mei->dbgfs_dir)
> +       if (IS_ERR(mei->dbgfs_dir))
>                 return;
>  
>         debugfs_create_ulong("status", S_IRUSR,

The title should be:

wifi: iwlwifi: mei: ...

Also, why two parameters? It only fixes dbgfs_dir?