[PATCH] irq: action setting before irq_startup

From: Yoshinori Sato
Date: Sat Jan 09 2016 - 06:58:42 EST


In non shared and non threaded IRQ case.
irq_startup calling before desc->action initialize.

Signed-off-by: Yoshinori Sato <ysato@xxxxxxxxxxxxxxxxxxxx>
---
kernel/irq/manage.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 0eebaee..f6cdb63 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -1272,6 +1272,8 @@ __setup_irq(unsigned int irq, struct irq_desc *desc, struct irqaction *new)
goto out_mask;
}

+ *old_ptr = new;
+
if (!shared) {
ret = irq_request_resources(desc);
if (ret) {
@@ -1328,8 +1330,6 @@ __setup_irq(unsigned int irq, struct irq_desc *desc, struct irqaction *new)
irq, nmsk, omsk);
}

- *old_ptr = new;
-
irq_pm_install_action(desc, new);

/* Reset broken irq detection when installing new handler */
--
2.6.1