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/drivers/usb/gadget/udc/bdc/Kconfig

config USB_BDC_UDC
	tristate "Broadcom USB3.0 device controller IP driver(BDC)"
	depends on USB_GADGET && HAS_DMA

	help
	BDC is Broadcom's USB3.0 device controller IP. If your SOC has a BDC IP
	then select this driver.

	Say "y" here to link the driver statically, or "m" to build a dynamically
	linked module called "bdc".

if USB_BDC_UDC

comment "Platform Support"
config	USB_BDC_PCI
	tristate "BDC support for PCIe based platforms"
	depends on PCI
	default USB_BDC_UDC
	help
		Enable support for platforms which have BDC connected through PCIe, such as Lego3 FPGA platform.
endif