arch: powerpc: kvm: add signed type cast for comparation

'rmls' is 'unsigned long', lpcr_rmls() will return negative number when
failure occurs, so it need a type cast for comparing.

'lpid' is 'unsigned long', kvmppc_alloc_lpid() return negative number
when failure occurs, so it need a type cast for comparing.

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>

diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 1cbcb4c..8aadd23 100644 (file)
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -1817,7 +1817,7 @@ static int kvmppc_hv_setup_htab_rma(struct kvm_vcpu *vcpu)
                rma_size <<= PAGE_SHIFT;
                rmls = lpcr_rmls(rma_size);
                err = -EINVAL;
-               if (rmls < 0) {
+               if ((long)rmls < 0) {
                        pr_err("KVM: Can't use RMA of 0x%lx bytes\n", rma_size);
                        goto out_srcu;
                }
@@ -1882,7 +1882,7 @@ int kvmppc_core_init_vm(struct kvm *kvm)
        /* Allocate the guest's logical partition ID */
 
        lpid = kvmppc_alloc_lpid();
-       if (lpid < 0)
+       if ((long)lpid < 0)
                return -ENOMEM;
        kvm->arch.lpid = lpid;