Return value directly from platform_device_register()
instead of getting value from redundant variable err.
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Jinpeng Cui <cui.jinpeng2@zte.com.cn>
Message-Id: <20220830142136.299373-1-cui.jinpeng2@zte.com.cn>
Signed-off-by: Tony Lindgren <tony@atomide.com>