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[RESEND] KVM:PPC:Book3s: fix memory leak in kvm_vm_ioctl_get_htab_fd

Message ID 20170831105109.58224-1-nixiaoming@huawei.com (mailing list archive)
State New, archived
Headers show

Commit Message

Xiaoming Ni Aug. 31, 2017, 10:51 a.m. UTC 
ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
but no free when anon_inode_getfd return fail
so, add kfree(ctx) to fix memory leak

Signed-off-by: nixiaoming <nixiaoming@huawei.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
---
 arch/powerpc/kvm/book3s_64_mmu_hv.c | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c b/arch/powerpc/kvm/book3s_64_mmu_hv.c
index b42812e..be3d08f 100644
--- a/arch/powerpc/kvm/book3s_64_mmu_hv.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_hv.c
@@ -1940,6 +1940,7 @@  int kvm_vm_ioctl_get_htab_fd(struct kvm *kvm, struct kvm_get_htab_fd *ghf)
 	rwflag = (ghf->flags & KVM_GET_HTAB_WRITE) ? O_WRONLY : O_RDONLY;
 	ret = anon_inode_getfd("kvm-htab", &kvm_htab_fops, ctx, rwflag | O_CLOEXEC);
 	if (ret < 0) {
+		kfree(ctx);
 		kvm_put_kvm(kvm);
 		return ret;
 	}