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Tue, 26 May 2026 10:36:24 -0700 (PDT) Date: Tue, 26 May 2026 10:36:08 -0700 From: Dmitry Torokhov To: Myeonghun Pak , Hans Verkuil Cc: linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org, Ijae Kim Subject: Re: [PATCH] Input: rmi4 - release F54 queue on video registration failure Message-ID: References: <20260524182351.27658-1-mhun512@gmail.com> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260524182351.27658-1-mhun512@gmail.com> On Mon, May 25, 2026 at 03:23:45AM +0900, Myeonghun Pak wrote: > rmi_f54_probe() initializes the videobuf2 queue before registering the > video device. If video_register_device() fails, probe only unregisters > the V4L2 device and leaves the initialized queue unwound by neither > remove nor file release paths. > > Release the queue before continuing through the existing probe error > path. > > This issue was identified during our ongoing static-analysis research while > reviewing kernel code. > > Fixes: 3a762dbd5347 ("[media] Input: synaptics-rmi4 - add support for F54 diagnostics") > Cc: stable@vger.kernel.org > Co-developed-by: Ijae Kim > Signed-off-by: Ijae Kim > Signed-off-by: Myeonghun Pak > --- > drivers/input/rmi4/rmi_f54.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/input/rmi4/rmi_f54.c b/drivers/input/rmi4/rmi_f54.c > index 61909e1a39..fca7b9fec5 100644 > --- a/drivers/input/rmi4/rmi_f54.c > +++ b/drivers/input/rmi4/rmi_f54.c > @@ -722,6 +722,7 @@ static int rmi_f54_probe(struct rmi_function *fn) > ret = video_register_device(&f54->vdev, VFL_TYPE_TOUCH, -1); > if (ret) { > dev_err(&fn->dev, "Unable to register video subdevice."); > + vb2_queue_release(&f54->queue); > goto remove_v4l2; > } > Hans, could you please Ack or Nak it? It is unclear to me if this cleanup is mandatory and whether it is also needed in rmi_f54_remove(). Thanks. -- Dmitry