JIRA: https://issues.redhat.com/browse/RHEL-47408



commit 93c66fbc280747ea700bd6199633d661e3c819b3
Author: Joe Hattori <joe@pf.is.s.u-tokyo.ac.jp>
Date:   Fri Jan 10 10:05:54 2025 +0900

    powercap: call put_device() on an error path in powercap_register_control_type()

    powercap_register_control_type() calls device_register(), but does not
    release the refcount of the device when it fails.

    Call put_device() before returning an error to balance the refcount.

    Since the kfree(control_type) will be done by powercap_release(), remove
    the lines in powercap_register_control_type() before returning the error.

    This bug was found by an experimental verifier that I am developing.

Signed-off-by: Joe Hattori <joe@pf.is.s.u-tokyo.ac.jp>
    Link: https://patch.msgid.link/20250110010554.1583411-1-joe@pf.is.s.u-tokyo.ac.jp


    [ rjw: Changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Signed-off-by: David Arcari <darcari@redhat.com>