From: Qiang Ma <maqianga@uniontech.com>
Date: Sat, 17 Jan 2026 02:57:03 +0000 (+0800)
Subject: LoongArch: KVM: Fix kvm_device leak in kvm_pch_pic_destroy()
X-Git-Tag: v6.19-rc6~16^2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1cf342a7c3adc5877837b53bbceb5cc9eff60bbf;p=thirdparty%2Flinux.git

LoongArch: KVM: Fix kvm_device leak in kvm_pch_pic_destroy()

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_pch_pic_destroy() is not currently doing this, that
would lead to a memory leak.

So, fix it.

Cc: stable@vger.kernel.org
Reviewed-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Qiang Ma <maqianga@uniontech.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
---

diff --git a/arch/loongarch/kvm/intc/pch_pic.c b/arch/loongarch/kvm/intc/pch_pic.c
index a698a73de399..4addb34bf432 100644
--- a/arch/loongarch/kvm/intc/pch_pic.c
+++ b/arch/loongarch/kvm/intc/pch_pic.c
@@ -475,6 +475,7 @@ static void kvm_pch_pic_destroy(struct kvm_device *dev)
 	/* unregister pch pic device and free it's memory */
 	kvm_io_bus_unregister_dev(kvm, KVM_MMIO_BUS, &s->device);
 	kfree(s);
+	kfree(dev);
 }
 
 static struct kvm_device_ops kvm_pch_pic_dev_ops = {