There is a typo so we accidentally return positive EINVAL instead of
negative -EINVAL.  Add the missing '-' character.

Fixes: 6aceb36f17ab ("PCI: xgene-msi: Restructure handler setup/teardown")
Signed-off-by: Dan Carpenter <redacted>
---
 drivers/pci/controller/pci-xgene-msi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/controller/pci-xgene-msi.c b/drivers/pci/controller/pci-xgene-msi.c
index 0a37a3f1809c..654639bccd10 100644
--- a/drivers/pci/controller/pci-xgene-msi.c
+++ b/drivers/pci/controller/pci-xgene-msi.c

@@ -311,7 +311,7 @@ static int xgene_msi_handler_setup(struct platform_device *pdev)
 		msi_val = xgene_msi_int_read(xgene_msi, i);
 		if (msi_val) {
 			dev_err(&pdev->dev, "Failed to clear spurious IRQ\n");
-			return EINVAL;
+			return -EINVAL;
 		}
 
 		irq = platform_get_irq(pdev, i);