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Subject: Re: [PATCH] rtw88: fix potential NULL skb access in TX ISR
From:   Kalle Valo <kvalo@codeaurora.org>
In-Reply-To: <20200107080807.14433-1-yhchuang@realtek.com>
References: <20200107080807.14433-1-yhchuang@realtek.com>
To:     <yhchuang@realtek.com>
Cc:     <linux-wireless@vger.kernel.org>, <briannorris@chromium.org>,
        <mikhail.v.gavrilov@gmail.com>, <rtereguloff@gmail.com>
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Date:   Sun, 26 Jan 2020 15:42:47 +0000 (UTC)
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<yhchuang@realtek.com> wrote:

> From: Yan-Hsuan Chuang <yhchuang@realtek.com>
> 
> Sometimes the TX queue may be empty and we could possible
> dequeue a NULL pointer, crash the kernel. If the skb is NULL
> then there is nothing to do, just leave the ISR.
> 
> And the TX queue should not be empty here, so print an error
> to see if there is anything wrong for DMA ring.
> 
> Fixes: e3037485c68e ("rtw88: new Realtek 802.11ac driver")
> Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>

Patch applied to wireless-drivers-next.git, thanks.

f4f84ff8377d rtw88: fix potential NULL skb access in TX ISR

-- 
https://patchwork.kernel.org/patch/11320567/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches