firmware: add helper to unregister pm ops

This will be used later to unfold on error on init.
Signed-off-by: NLuis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/base/firmware_class.c

@@ -1767,11 +1767,20 @@ static int fw_suspend(void)
 static struct syscore_ops fw_syscore_ops = {
 	.suspend = fw_suspend,
 };
+
+static inline void unregister_fw_pm_ops(void)
+{
+	unregister_syscore_ops(&fw_syscore_ops);
+	unregister_pm_notifier(&fw_cache.pm_notify);
+}
 #else
 static int fw_cache_piggyback_on_request(const char *name)
 {
 	return 0;
 }
+static inline void unregister_fw_pm_ops(void)
+{
+}
 #endif
 
 static void __init fw_cache_init(void)
@@ -1823,10 +1832,7 @@ static int __init firmware_class_init(void)
 
 static void __exit firmware_class_exit(void)
 {
-#ifdef CONFIG_PM_SLEEP
-	unregister_syscore_ops(&fw_syscore_ops);
-	unregister_pm_notifier(&fw_cache.pm_notify);
-#endif
+	unregister_fw_pm_ops();
 	unregister_reboot_notifier(&fw_shutdown_nb);
 #ifdef CONFIG_FW_LOADER_USER_HELPER
 	class_unregister(&firmware_class);