[PATCH] irqchip/irq-bcm7120-l2: add put_device() after of_find_device_by_node()

From: cgel . zte
Date: Mon Nov 08 2021 - 22:29:55 EST


From: Ye Guojin <ye.guojin@xxxxxxxxxx>

This was found by coccicheck:
./drivers/irqchip/irq-bcm7120-l2.c,328,1-7,ERROR missing put_device;
call of_find_device_by_node on line 234, but without a corresponding
object release within this function.
./drivers/irqchip/irq-bcm7120-l2.c,341,1-7,ERROR missing put_device;
call of_find_device_by_node on line 234, but without a corresponding
object release within this function.

Addtionally, fixup the potential problem that memory is not released
before return.

Reported-by: Zeal Robot <zealci@xxxxxxxxxx>
Signed-off-by: Ye Guojin <ye.guojin@xxxxxxxxxx>
---
drivers/irqchip/irq-bcm7120-l2.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/irqchip/irq-bcm7120-l2.c b/drivers/irqchip/irq-bcm7120-l2.c
index d80e67a6aad2..aaa70619f3c0 100644
--- a/drivers/irqchip/irq-bcm7120-l2.c
+++ b/drivers/irqchip/irq-bcm7120-l2.c
@@ -325,7 +325,7 @@ static int __init bcm7120_l2_intc_probe(struct device_node *dn,
pr_info("registered %s intc (%pOF, parent IRQ(s): %d)\n",
intc_name, dn, data->num_parent_irqs);

- return 0;
+ ret = 0;

out_free_domain:
irq_domain_remove(data->domain);
@@ -336,6 +336,7 @@ static int __init bcm7120_l2_intc_probe(struct device_node *dn,
if (data->map_base[idx])
iounmap(data->map_base[idx]);
}
+ put_device(&pdev->dev);
out_free_data:
kfree(data);
return ret;
--
2.25.1