[PATCH v3 02/14 RESEND] irqchip/csky-apb-intc: Fix potential resource leaks

[Tiezhu Yang]

There exists potential resource leaks in the error path, fix them.

Fixes: edff1b4835b7 ("irqchip: add C-SKY APB bus interrupt controller")
Signed-off-by: Tiezhu Yang <yangtie...@loongson.cn>
---
 drivers/irqchip/irq-csky-apb-intc.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/drivers/irqchip/irq-csky-apb-intc.c 
b/drivers/irqchip/irq-csky-apb-intc.c
index 5a2ec43..11a35eb 100644
--- a/drivers/irqchip/irq-csky-apb-intc.c
+++ b/drivers/irqchip/irq-csky-apb-intc.c
@@ -118,7 +118,8 @@ ck_intc_init_comm(struct device_node *node, struct 
device_node *parent)
                                            &irq_generic_chip_ops, NULL);
        if (!root_domain) {
                pr_err("C-SKY Intc irq_domain_add failed.\n");
-               return -ENOMEM;
+               ret = -ENOMEM;
+               goto err_iounmap;
        }
 
        ret = irq_alloc_domain_generic_chips(root_domain, 32, 1,
@@ -126,10 +127,17 @@ ck_intc_init_comm(struct device_node *node, struct 
device_node *parent)
                        IRQ_NOREQUEST | IRQ_NOPROBE | IRQ_NOAUTOEN, 0, 0);
        if (ret) {
                pr_err("C-SKY Intc irq_alloc_gc failed.\n");
-               return -ENOMEM;
+               ret = -ENOMEM;
+               goto err_domain_remove;
        }
 
        return 0;
+
+err_domain_remove:
+       irq_domain_remove(root_domain);
+err_iounmap:
+       iounmap(reg_base);
+       return ret;
 }
 
 static inline bool handle_irq_perbit(struct pt_regs *regs, u32 hwirq,
-- 
2.1.0