linux-kernel - Re: [PATCH][next] rtw88: coex: fix missing unitialization of variable 'interval'

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Date:   Fri, 4 Dec 2020 02:57:36 +0000
From:   Pkshih <pkshih@...ltek.com>
To:     "tony0620emma@...il.com" <tony0620emma@...il.com>,
        "colin.king@...onical.com" <colin.king@...onical.com>,
        DeanKu <ku920601@...ltek.com>,
        "kuba@...nel.org" <kuba@...nel.org>,
        "kvalo@...eaurora.org" <kvalo@...eaurora.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "kernel-janitors@...r.kernel.org" <kernel-janitors@...r.kernel.org>
Subject: Re: [PATCH][next] rtw88: coex: fix missing unitialization of variable 'interval'

On Thu, 2020-12-03 at 17:51 +0000, Colin King wrote:
> From: Colin Ian King <colin.king@...onical.com>
> 
> Currently the variable 'interval' is not initialized and is only set
> to 1 when oex_stat->bt_418_hid_existi is true.  Fix this by inintializing
> variable interval to 0 (which I'm assuming is the intended default).
> 
> Addresses-Coverity: ("Uninitalized scalar variable")
> Fixes: 5b2e9a35e456 ("rtw88: coex: add feature to enhance HID coexistence
> performance")
> Signed-off-by: Colin Ian King <colin.king@...onical.com>

Thanks for your fix.

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

> ---
>  drivers/net/wireless/realtek/rtw88/coex.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/net/wireless/realtek/rtw88/coex.c
> b/drivers/net/wireless/realtek/rtw88/coex.c
> index c704c6885a18..24530cafcba7 100644
> --- a/drivers/net/wireless/realtek/rtw88/coex.c
> +++ b/drivers/net/wireless/realtek/rtw88/coex.c
> @@ -2051,7 +2051,7 @@ static void rtw_coex_action_bt_a2dp_hid(struct rtw_dev
> *rtwdev)
>  	struct rtw_coex_dm *coex_dm = &coex->dm;
>  	struct rtw_efuse *efuse = &rtwdev->efuse;
>  	struct rtw_chip_info *chip = rtwdev->chip;
> -	u8 table_case, tdma_case, interval;
> +	u8 table_case, tdma_case, interval = 0;
>  	u32 slot_type = 0;
>  	bool is_toggle_table = false;
>  
> -- 
> 2.29.2
> 
> 
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