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([2a00:1fa0:4609:f5ea:9102:8276:8e24:1626]) by smtp.gmail.com with ESMTPSA id i2sm9381ljn.109.2020.07.07.01.35.16 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 07 Jul 2020 01:35:16 -0700 (PDT) Subject: Re: [PATCH v3] usb: gadget: function: fix missing spinlock in f_uac1_legacy To: qiang.zhang@windriver.com, balbi@kernel.org Cc: colin.king@canonical.com, gregkh@linuxfoundation.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org References: <20200705124027.30011-1-qiang.zhang@windriver.com> From: Sergei Shtylyov Message-ID: <09b2225a-d9c8-c40f-1e73-e18ece80e3bb@cogentembedded.com> Date: Tue, 7 Jul 2020 11:35:12 +0300 User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20200705124027.30011-1-qiang.zhang@windriver.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 05.07.2020 15:40, qiang.zhang@windriver.com wrote: > From: Zhang Qiang > > Add a missing spinlock protection for play_queue, because > the play_queue may be destroyed when the "playback_work" > work func and "f_audio_out_ep_complete" callback func > operate this paly_queue at the same time. It's play_queue. :-) > Cc: stable > Signed-off-by: Zhang Qiang [...] MBR, Sergei