tree 366aa0fa6bce92df062eade122b83d5f82262fd5
parent a1802b3ce160026e7214cf7c56c529bc6500a898
author Caleb Connolly <caleb.connolly@linaro.org> 1712857957 +0200
committer Tom Rini <trini@konsulko.com> 1713479830 -0600

input: button_kbd: gracefully handle buttons that fail probe

If a button device fails to probe, it will still be added to the uclass
device list, and therefore will still be iterated over in
button_read_keys() resulting in a UAF on the buttons private data.

Resolve this by unbinding button devices that aren't active after
probing, and print a warning so it's clear that the button is broken.

Fixes: e8779962898e ("dm: input: add button_kbd driver")
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>