KVM: PPC: Book3S HV: Check for kmalloc errors in ioctl

kzalloc() won't actually fail because sizeof(*resize) is small, but
static checkers complain.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>

diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c b/arch/powerpc/kvm/book3s_64_mmu_hv.c
index 8c68145ba1bd35f4e86f0a3da729ee5387a7c781..710e491206ed0a11ff96b4994d8dbb91f264b94a 100644 (file)
--- a/arch/powerpc/kvm/book3s_64_mmu_hv.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_hv.c
@@ -1487,6 +1487,10 @@ long kvm_vm_ioctl_resize_hpt_prepare(struct kvm *kvm,
        /* start new resize */
 
        resize = kzalloc(sizeof(*resize), GFP_KERNEL);
+       if (!resize) {
+               ret = -ENOMEM;
+               goto out;
+       }
        resize->order = shift;
        resize->kvm = kvm;
        INIT_WORK(&resize->work, resize_hpt_prepare_work);