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-rw-r--r--kernel/irq/affinity.c2
-rw-r--r--kernel/irq/chip.c11
-rw-r--r--kernel/irq/manage.c8
3 files changed, 19 insertions, 2 deletions
diff --git a/kernel/irq/affinity.c b/kernel/irq/affinity.c
index f68959341c0f..32f6cfcff212 100644
--- a/kernel/irq/affinity.c
+++ b/kernel/irq/affinity.c
@@ -39,6 +39,7 @@ struct cpumask *irq_create_affinity_mask(unsigned int *nr_vecs)
return NULL;
}
+ get_online_cpus();
if (max_vecs >= num_online_cpus()) {
cpumask_copy(affinity_mask, cpu_online_mask);
*nr_vecs = num_online_cpus();
@@ -56,6 +57,7 @@ struct cpumask *irq_create_affinity_mask(unsigned int *nr_vecs)
}
*nr_vecs = vecs;
}
+ put_online_cpus();
return affinity_mask;
}
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index b4c1bc7c9ca2..637389088b3f 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -820,6 +820,17 @@ __irq_do_set_handler(struct irq_desc *desc, irq_flow_handler_t handle,
desc->name = name;
if (handle != handle_bad_irq && is_chained) {
+ /*
+ * We're about to start this interrupt immediately,
+ * hence the need to set the trigger configuration.
+ * But the .set_type callback may have overridden the
+ * flow handler, ignoring that we're dealing with a
+ * chained interrupt. Reset it immediately because we
+ * do know better.
+ */
+ __irq_set_trigger(desc, irqd_get_trigger_type(&desc->irq_data));
+ desc->handle_irq = handle;
+
irq_settings_set_noprobe(desc);
irq_settings_set_norequest(desc);
irq_settings_set_nothread(desc);
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 73a2b786b5e9..9530fcd27704 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -1681,8 +1681,10 @@ int request_threaded_irq(unsigned int irq, irq_handler_t handler,
action->dev_id = dev_id;
retval = irq_chip_pm_get(&desc->irq_data);
- if (retval < 0)
+ if (retval < 0) {
+ kfree(action);
return retval;
+ }
chip_bus_lock(desc);
retval = __setup_irq(irq, desc, action);
@@ -1985,8 +1987,10 @@ int request_percpu_irq(unsigned int irq, irq_handler_t handler,
action->percpu_dev_id = dev_id;
retval = irq_chip_pm_get(&desc->irq_data);
- if (retval < 0)
+ if (retval < 0) {
+ kfree(action);
return retval;
+ }
chip_bus_lock(desc);
retval = __setup_irq(irq, desc, action);