[PATCH] powerpc/fsl_msi: fix return error value in error handing path

[cgel.zte at gmail.com]

From: Lv Ruyi <lv.ruyi at zte.com.cn>

This function fsl_msi_setup_hwirq() seems to return zero on success and
non-zero on failure, but it returns zero in error handing path.

Reported-by: Zeal Robot <zealci at zte.com.cn>
Signed-off-by: Lv Ruyi <lv.ruyi at zte.com.cn>
---
 arch/powerpc/sysdev/fsl_msi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/sysdev/fsl_msi.c b/arch/powerpc/sysdev/fsl_msi.c
index b3475ae9f236..10f974cfa2f3 100644
--- a/arch/powerpc/sysdev/fsl_msi.c
+++ b/arch/powerpc/sysdev/fsl_msi.c
@@ -353,7 +353,7 @@ static int fsl_msi_setup_hwirq(struct fsl_msi *msi, struct platform_device *dev,
 	if (!virt_msir) {
 		dev_err(&dev->dev, "%s: Cannot translate IRQ index %d\n",
 			__func__, irq_index);
-		return 0;
+		return -EINVAL;
 	}
 
 	cascade_data = kzalloc(sizeof(struct fsl_msi_cascade_data), GFP_KERNEL);
-- 
2.25.1