[PATCH 3/3] LoongArch: KVM: Fix kvm_device leak in kvm_eiointc_destroy

From: Qiang Ma

Date: Fri Dec 26 2025 - 10:08:49 EST


In kvm_ioctl_create_device(), kvm_device has allocated memory,
kvm_device->destroy() seems to be supposed to free its kvm_device
struct, but kvm_eiointc_destroy() is not currently doing this,
that would lead to a memory leak.

So, fix it.

Signed-off-by: Qiang Ma <maqianga@xxxxxxxxxxxxx>
---
arch/loongarch/kvm/intc/eiointc.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/arch/loongarch/kvm/intc/eiointc.c b/arch/loongarch/kvm/intc/eiointc.c
index 29886876143f..cb94c7e8267a 100644
--- a/arch/loongarch/kvm/intc/eiointc.c
+++ b/arch/loongarch/kvm/intc/eiointc.c
@@ -679,6 +679,8 @@ static void kvm_eiointc_destroy(struct kvm_device *dev)
kvm_io_bus_unregister_dev(kvm, KVM_IOCSR_BUS, &eiointc->device);
kvm_io_bus_unregister_dev(kvm, KVM_IOCSR_BUS, &eiointc->device_vext);
kfree(eiointc);
+ /* alloc by kvm_ioctl_create_device, free by .destroy */
+ kfree(dev);
}

static struct kvm_device_ops kvm_eiointc_dev_ops = {
--
2.20.1