[PATCH 5.15 027/247] rpmsg: virtio: Fix the unregistration of the device rpmsg_ctrl

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From: Arnaud Pouliquen <arnaud.pouliquen@xxxxxxxxxxx>

[ Upstream commit df191796985922488e4e6b64f7bd79c3934412f2 ]

Unregister the rpmsg_ctrl device instead of just freeing the
the virtio_rpmsg_channel structure.
This will properly unregister the device and call
virtio_rpmsg_release_device() that frees the structure.

Fixes: c486682ae1e2 ("rpmsg: virtio: Register the rpmsg_char device")
Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@xxxxxxxxxxx>
Reviewed-by: Hangyu Hua <hbh25y@xxxxxxxxx>
Link: https://lore.kernel.org/r/20220426060536.15594-4-hbh25y@xxxxxxxxx
Signed-off-by: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/rpmsg/virtio_rpmsg_bus.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/rpmsg/virtio_rpmsg_bus.c b/drivers/rpmsg/virtio_rpmsg_bus.c
index 3a62e6197151..b03e7404212f 100644
--- a/drivers/rpmsg/virtio_rpmsg_bus.c
+++ b/drivers/rpmsg/virtio_rpmsg_bus.c
@@ -853,7 +853,7 @@ static void rpmsg_virtio_del_ctrl_dev(struct rpmsg_device *rpdev_ctrl)
 {
 	if (!rpdev_ctrl)
 		return;
-	kfree(to_virtio_rpmsg_channel(rpdev_ctrl));
+	device_unregister(&rpdev_ctrl->dev);
 }
 
 static int rpmsg_probe(struct virtio_device *vdev)
-- 
2.35.1






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