linux-kernel - RE: [PATCH -next] wifi: rtw88: add missing destroy_workqueue() on error path in rtw_core

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Date:   Fri, 26 Aug 2022 00:44:42 +0000
From:   Ping-Ke Shih <pkshih@...ltek.com>
To:     Yang Yingliang <yangyingliang@...wei.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>
CC:     "tony0620emma@...il.com" <tony0620emma@...il.com>,
        "kvalo@...nel.org" <kvalo@...nel.org>,
        Bernie Huang <phhuang@...ltek.com>
Subject: RE: [PATCH -next] wifi: rtw88: add missing destroy_workqueue() on error path in rtw_core_init()


> -----Original Message-----
> From: Yang Yingliang <yangyingliang@...wei.com>
> Sent: Thursday, August 25, 2022 9:38 PM
> To: linux-kernel@...r.kernel.org; netdev@...r.kernel.org; linux-wireless@...r.kernel.org
> Cc: tony0620emma@...il.com; kvalo@...nel.org; Bernie Huang <phhuang@...ltek.com>
> Subject: [PATCH -next] wifi: rtw88: add missing destroy_workqueue() on error path in rtw_core_init()
> 
> Add the missing destroy_workqueue() before return from rtw_core_init()
> in error path.
> 
> Fixes: fe101716c7c9 ("rtw88: replace tx tasklet with work queue")
> Signed-off-by: Yang Yingliang <yangyingliang@...wei.com>
> ---
>  drivers/net/wireless/realtek/rtw88/main.c | 8 ++++++--
>  1 file changed, 6 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/net/wireless/realtek/rtw88/main.c b/drivers/net/wireless/realtek/rtw88/main.c
> index 790dcfed1125..557213e52761 100644
> --- a/drivers/net/wireless/realtek/rtw88/main.c
> +++ b/drivers/net/wireless/realtek/rtw88/main.c
> @@ -2094,7 +2094,7 @@ int rtw_core_init(struct rtw_dev *rtwdev)
>  	ret = rtw_load_firmware(rtwdev, RTW_NORMAL_FW);
>  	if (ret) {
>  		rtw_warn(rtwdev, "no firmware loaded\n");
> -		return ret;
> +		goto destroy_workqueue;
>  	}
> 
>  	if (chip->wow_fw_name) {
> @@ -2104,11 +2104,15 @@ int rtw_core_init(struct rtw_dev *rtwdev)
>  			wait_for_completion(&rtwdev->fw.completion);
>  			if (rtwdev->fw.firmware)
>  				release_firmware(rtwdev->fw.firmware);
> -			return ret;
> +			goto destroy_workqueue;
>  		}
>  	}
> 
>  	return 0;
> +
> +destroy_workqueue:

It's not so good that the label 'destroy_workqueue' is the same as function name.
I suggest to just use 'out' instead.

> +	destroy_workqueue(rtwdev->tx_wq);
> +	return ret;
>  }
>  EXPORT_SYMBOL(rtw_core_init);
> 
> --
> 2.25.1
> 
> 
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