PCI/MSI: pci-xgene-msi: Fix CPU hotplug registration handling

The conversion to the new hotplug state machine introduced a regression
where a successful hotplug registration would be treated as an error,
effectively disabling the MSI driver forever.

Fix it by doing the proper check on the return value.

Fixes: 9c248f8896e6 ("PCI/xgene-msi: Convert to hotplug state machine")
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Tested-by: Duc Dang <dhdang@apm.com>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: stable@vger.kernel.org

path: root/include/dt-bindings/mfd/st-lpc.h

/*
 * This header provides shared DT/Driver defines for ST's LPC device
 *
 * Copyright (C) 2014 STMicroelectronics -- All Rights Reserved
 *
 * Author: Lee Jones <lee.jones@linaro.org> for STMicroelectronics
 */

#ifndef __DT_BINDINGS_ST_LPC_H__
#define __DT_BINDINGS_ST_LPC_H__

#define ST_LPC_MODE_RTC		0
#define ST_LPC_MODE_WDT		1
#define ST_LPC_MODE_CLKSRC	2

#endif /* __DT_BINDINGS_ST_LPC_H__ */