Re: [PATCH] rust: device: fix device context of Device::parent()

On Thu, Oct 16, 2025 at 03:31:44PM +0200, Danilo Krummrich wrote:

Regardless of the DeviceContext of a device, we can't give any guarantees about the DeviceContext of its parent device.

This is very subtle, since it's only caused by a simple typo, i.e.

Self::from_raw(parent)

which preserves the DeviceContext in this case, vs.

Device::from_raw(parent)

which discards the DeviceContext.

(I should have noticed it doing the correct thing in auxiliary::Device subsequently, but somehow missed it.)

Hence, fix both Device::parent() and auxiliary::Device::parent().

Cc: stable@vger.kernel.org Fixes: a4c9f71e3440 ("rust: device: implement Device::parent()") Signed-off-by: Danilo Krummrich dakr@kernel.org

Reviewed-by: Alice Ryhl aliceryhl@google.com