[PATCH] Input: rmi4 - release F54 queue on video registration failure

[Myeonghun Pak <mhun512@gmail.com>]

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 <ae878000@gmail.com>
Signed-off-by: Ijae Kim <ae878000@gmail.com>
Signed-off-by: Myeonghun Pak <mhun512@gmail.com>
---
 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;
 	}
 
-- 
2.47.1