[PATCH] irqchip/tango: Fix possible null ptr reference in tangox_irq_init

[Ye Bin]

In tangox_irq_init allocate chip but not test.

Signed-off-by: Ye Bin <yebin10@xxxxxxxxxx>
---
 drivers/irqchip/irq-tango.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/irqchip/irq-tango.c b/drivers/irqchip/irq-tango.c
index 34290f09b853..25da120230ad 100644
--- a/drivers/irqchip/irq-tango.c
+++ b/drivers/irqchip/irq-tango.c
@@ -187,6 +187,8 @@ static int __init tangox_irq_init(void __iomem *base, struct resource *baseres,
 		panic("%pOFn: failed to get address", node);
 
 	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
+	if (!chip)
+		panic("%pOFn: failed to get chip", node);
 	chip->ctl = res.start - baseres->start;
 	chip->base = base;
 
-- 
2.25.4