[PATCH] irqchip/loongson-liointc: Fix an error handling path in liointc_init()

[Christophe JAILLET]

If a of_property_match_string() call fails, we still need to release some
resources.
Add the corresponding goto instead of a direct return.

Fixes: 807e93d0ecbb ("irqchip/loongson-liointc: Add ACPI init support")
Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
---
 drivers/irqchip/irq-loongson-liointc.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/irqchip/irq-loongson-liointc.c b/drivers/irqchip/irq-loongson-liointc.c
index ff3cb5b05710..2227b702a81d 100644
--- a/drivers/irqchip/irq-loongson-liointc.c
+++ b/drivers/irqchip/irq-loongson-liointc.c
@@ -185,8 +185,10 @@ static int liointc_init(phys_addr_t addr, unsigned long size, int revision,
 			int index = of_property_match_string(node,
 					"reg-names", core_reg_names[i]);
 
-			if (index < 0)
-				return -EINVAL;
+			if (index < 0) {
+				err = -EINVAL;
+				goto out_iounmap;
+			}
 
 			priv->core_isr[i] = of_iomap(node, index);
 		}
-- 
2.34.1