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authorIngo Molnar <mingo@kernel.org>2020-02-24 13:36:09 +0300
committerIngo Molnar <mingo@kernel.org>2020-02-24 13:36:09 +0300
commit546121b65f47384e11ec1fa2e55449fc9f4846b2 (patch)
tree8f18470ec7c0c77b0f48eb1b2338e591b0b0aaff /virt/lib/irqbypass.c
parent000619680c3714020ce9db17eef6a4a7ce2dc28b (diff)
parentf8788d86ab28f61f7b46eb6be375f8a726783636 (diff)
downloadlinux-546121b65f47384e11ec1fa2e55449fc9f4846b2.tar.xz
Merge tag 'v5.6-rc3' into sched/core, to pick up fixes and dependent patches
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'virt/lib/irqbypass.c')
-rw-r--r--virt/lib/irqbypass.c38
1 files changed, 20 insertions, 18 deletions
diff --git a/virt/lib/irqbypass.c b/virt/lib/irqbypass.c
index 43de8ae78fa1..28fda42e471b 100644
--- a/virt/lib/irqbypass.c
+++ b/virt/lib/irqbypass.c
@@ -85,6 +85,7 @@ int irq_bypass_register_producer(struct irq_bypass_producer *producer)
{
struct irq_bypass_producer *tmp;
struct irq_bypass_consumer *consumer;
+ int ret;
if (!producer->token)
return -EINVAL;
@@ -98,20 +99,16 @@ int irq_bypass_register_producer(struct irq_bypass_producer *producer)
list_for_each_entry(tmp, &producers, node) {
if (tmp->token == producer->token) {
- mutex_unlock(&lock);
- module_put(THIS_MODULE);
- return -EBUSY;
+ ret = -EBUSY;
+ goto out_err;
}
}
list_for_each_entry(consumer, &consumers, node) {
if (consumer->token == producer->token) {
- int ret = __connect(producer, consumer);
- if (ret) {
- mutex_unlock(&lock);
- module_put(THIS_MODULE);
- return ret;
- }
+ ret = __connect(producer, consumer);
+ if (ret)
+ goto out_err;
break;
}
}
@@ -121,6 +118,10 @@ int irq_bypass_register_producer(struct irq_bypass_producer *producer)
mutex_unlock(&lock);
return 0;
+out_err:
+ mutex_unlock(&lock);
+ module_put(THIS_MODULE);
+ return ret;
}
EXPORT_SYMBOL_GPL(irq_bypass_register_producer);
@@ -179,6 +180,7 @@ int irq_bypass_register_consumer(struct irq_bypass_consumer *consumer)
{
struct irq_bypass_consumer *tmp;
struct irq_bypass_producer *producer;
+ int ret;
if (!consumer->token ||
!consumer->add_producer || !consumer->del_producer)
@@ -193,20 +195,16 @@ int irq_bypass_register_consumer(struct irq_bypass_consumer *consumer)
list_for_each_entry(tmp, &consumers, node) {
if (tmp->token == consumer->token || tmp == consumer) {
- mutex_unlock(&lock);
- module_put(THIS_MODULE);
- return -EBUSY;
+ ret = -EBUSY;
+ goto out_err;
}
}
list_for_each_entry(producer, &producers, node) {
if (producer->token == consumer->token) {
- int ret = __connect(producer, consumer);
- if (ret) {
- mutex_unlock(&lock);
- module_put(THIS_MODULE);
- return ret;
- }
+ ret = __connect(producer, consumer);
+ if (ret)
+ goto out_err;
break;
}
}
@@ -216,6 +214,10 @@ int irq_bypass_register_consumer(struct irq_bypass_consumer *consumer)
mutex_unlock(&lock);
return 0;
+out_err:
+ mutex_unlock(&lock);
+ module_put(THIS_MODULE);
+ return ret;
}
EXPORT_SYMBOL_GPL(irq_bypass_register_consumer);