linux-kernel - RE: [PATCH] wifi: rtw89: Fix some error handling path in rtw89_wow

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Date:   Tue, 15 Nov 2022 00:31:38 +0000
From:   Ping-Ke Shih <pkshih@...ltek.com>
To:     Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        Kalle Valo <kvalo@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, Timlee <timlee@...ltek.com>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "kernel-janitors@...r.kernel.org" <kernel-janitors@...r.kernel.org>,
        "linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: RE: [PATCH] wifi: rtw89: Fix some error handling path in rtw89_wow_enable()



> -----Original Message-----
> From: Christophe JAILLET <christophe.jaillet@...adoo.fr>
> Sent: Sunday, November 13, 2022 11:42 PM
> To: Ping-Ke Shih <pkshih@...ltek.com>; Kalle Valo <kvalo@...nel.org>; David S. Miller <davem@...emloft.net>;
> Eric Dumazet <edumazet@...gle.com>; Jakub Kicinski <kuba@...nel.org>; Paolo Abeni <pabeni@...hat.com>;
> Timlee <timlee@...ltek.com>
> Cc: linux-kernel@...r.kernel.org; kernel-janitors@...r.kernel.org; Christophe JAILLET
> <christophe.jaillet@...adoo.fr>; linux-wireless@...r.kernel.org; netdev@...r.kernel.org
> Subject: [PATCH] wifi: rtw89: Fix some error handling path in rtw89_wow_enable()
> 
> 'ret' is not updated after several function calls in rtw89_wow_enable().
> This prevent error handling from working.
> 
> Add the missing assignments.
> 
> Fixes: 19e28c7fcc74 ("wifi: rtw89: add WoWLAN function support")
> Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>

Acked-by: Ping-Ke Shih <pkshih@...ltek.com>

Thanks for the fixes.

> ---
>  drivers/net/wireless/realtek/rtw89/wow.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/net/wireless/realtek/rtw89/wow.c b/drivers/net/wireless/realtek/rtw89/wow.c
> index 7de4dd047d6b..b2b826b2e09a 100644
> --- a/drivers/net/wireless/realtek/rtw89/wow.c
> +++ b/drivers/net/wireless/realtek/rtw89/wow.c
> @@ -744,13 +744,13 @@ static int rtw89_wow_enable(struct rtw89_dev *rtwdev)
>  		goto out;
>  	}
> 
> -	rtw89_wow_swap_fw(rtwdev, true);
> +	ret = rtw89_wow_swap_fw(rtwdev, true);
>  	if (ret) {
>  		rtw89_err(rtwdev, "wow: failed to swap to wow fw\n");
>  		goto out;
>  	}
> 
> -	rtw89_wow_fw_start(rtwdev);
> +	ret = rtw89_wow_fw_start(rtwdev);
>  	if (ret) {
>  		rtw89_err(rtwdev, "wow: failed to let wow fw start\n");
>  		goto out;
> @@ -758,7 +758,7 @@ static int rtw89_wow_enable(struct rtw89_dev *rtwdev)
> 
>  	rtw89_wow_enter_lps(rtwdev);
> 
> -	rtw89_wow_enable_trx_post(rtwdev);
> +	ret = rtw89_wow_enable_trx_post(rtwdev);
>  	if (ret) {
>  		rtw89_err(rtwdev, "wow: failed to enable trx_post\n");
>  		goto out;
> --
> 2.34.1