[PATCH 4.19 335/425] PCI: iproc: Fix return value of iproc_msi_irq_domain_alloc()

[Greg Kroah-Hartman]

From: Pali Rohár <pali@xxxxxxxxxx>

[ Upstream commit 1e83130f01b04c16579ed5a5e03d729bcffc4c5d ]

IRQ domain alloc function should return zero on success. Non-zero value
indicates failure.

Link: https://lore.kernel.org/r/20210303142202.25780-1-pali@xxxxxxxxxx
Fixes: fc54bae28818 ("PCI: iproc: Allow allocation of multiple MSIs")
Signed-off-by: Pali Rohár <pali@xxxxxxxxxx>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@xxxxxxx>
Reviewed-by: Krzysztof Wilczyński <kw@xxxxxxxxx>
Acked-by: Ray Jui <ray.jui@xxxxxxxxxxxx>
Acked-by: Marc Zyngier <maz@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/pci/controller/pcie-iproc-msi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/controller/pcie-iproc-msi.c b/drivers/pci/controller/pcie-iproc-msi.c
index ea612382599c..dc953c73cb56 100644
--- a/drivers/pci/controller/pcie-iproc-msi.c
+++ b/drivers/pci/controller/pcie-iproc-msi.c
@@ -271,7 +271,7 @@ static int iproc_msi_irq_domain_alloc(struct irq_domain *domain,
 				    NULL, NULL);
 	}
 
-	return hwirq;
+	return 0;
 }
 
 static void iproc_msi_irq_domain_free(struct irq_domain *domain,
-- 
2.30.2