In scmi_devm_notifier_unregister(), the notifier-block argument was ignored
and never passed to devres_release(). As a result, the function always
returned -ENOENT and failed to unregister the notifier.
Drivers that depend on this helper for teardown could therefore hit
unexpected failures, including kernel panics.
Commit 264a2c5206 ("firmware: arm_scmi: Simplify scmi_devm_notifier_unregister")
removed the faulty code path during refactoring and hence this fix is not
required upstream.
Cc: <stable@vger.kernel.org> # 5.15.x, 6.1.x, and 6.6.x
Fixes: 5ad3d1cf7d ("firmware: arm_scmi: Introduce new devres notification ops")
Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Amitai Gottlieb <amitaig@hailo.ai>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
0e8ac70521