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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: 9c248f8896
("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
This commit is contained in:
parent
51ebfc92b7
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4d191b1b63
@ -517,7 +517,7 @@ static int xgene_msi_probe(struct platform_device *pdev)
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rc = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "pci/xgene:online",
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xgene_msi_hwirq_alloc, NULL);
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if (rc)
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if (rc < 0)
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goto err_cpuhp;
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pci_xgene_online = rc;
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rc = cpuhp_setup_state(CPUHP_PCI_XGENE_DEAD, "pci/xgene:dead", NULL,
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