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Subject[PATCH] genirq: replace notify with old_notify in irq_set_affinity_notifier()
Date
This patch is for Linux 4.19 with a RT patch.

The second 'if' block does not check notify for NULL,
this leads to a system crash.

Most likely, there is a typo here.

With old_notify system works as expected.

Signed-off-by: Ivan Safonov <insafonov@gmail.com>
---
kernel/irq/manage.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 290cd520dba1..79a7072dfb3c 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -412,7 +412,7 @@ irq_set_affinity_notifier(unsigned int irq, struct irq_affinity_notify *notify)

if (old_notify) {
#ifdef CONFIG_PREEMPT_RT_BASE
- kthread_cancel_work_sync(&notify->work);
+ kthread_cancel_work_sync(&old_notify->work);
#else
cancel_work_sync(&old_notify->work);
#endif
--
2.21.0
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