Re: [PATCH] [Re-PATCH] arch: arm: mach-pxa: Add missing of_node_put in irq.c

From: Conor Dooley
Date: Wed Jun 15 2022 - 06:44:09 EST



On 15/06/2022 11:33, heliang wrote:
[PATCH] [Re-PATCH] arch: arm: mach-pxa: Add missing of_node_put in irq.c

You mean [PATCH v2]? Pass -v N arg to format-patch & it'll do it
for you.

In pxa_dt_irq_init(), of_find_matching_node() will return a node
pointer with refcount incremented. We should use of_node_put in
fail path or when it is not used anymore. This goto-label patch
style is advised by Daniel.

Signed-off-by: heliang <windhl@xxxxxxx>

On all these patches, is "heliang" your (full) real name?
See:
https://www.kernel.org/doc/html/latest/process/submitting-patches.html#developer-s-certificate-of-origin-1-1

---

It's helpful to put a changelog here too for what changed since v1

arch/arm/mach-pxa/irq.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/arch/arm/mach-pxa/irq.c b/arch/arm/mach-pxa/irq.c
index 96f33ef1d9ea..338356b9f37c 100644
--- a/arch/arm/mach-pxa/irq.c
+++ b/arch/arm/mach-pxa/irq.c
@@ -247,13 +247,13 @@ void __init pxa_dt_irq_init(int (*fn)(struct irq_data *, unsigned int))
&pxa_internal_irq_nr);
if (ret) {
pr_err("Not found marvell,intc-nr-irqs property\n");
- return;
+ goto out_put;
}
ret = of_address_to_resource(node, 0, &res);
if (ret < 0) {
pr_err("No registers defined for node\n");
- return;
+ goto out_put;
}
pxa_irq_base = io_p2v(res.start);
@@ -263,9 +263,12 @@ void __init pxa_dt_irq_init(int (*fn)(struct irq_data *, unsigned int))
ret = irq_alloc_descs(-1, 0, pxa_internal_irq_nr, 0);
if (ret < 0) {
pr_err("Failed to allocate IRQ numbers\n");
- return;
+ goto out_put;
}
pxa_init_irq_common(node, pxa_internal_irq_nr, fn);
+
+out_put:
+ of_node_put(node);
}
#endif /* CONFIG_OF */