[RFC v3 02/24] target/arm/kvm: Return immediately on error in kvm_arch_init()

From: Jean-Philippe Brucker <[email protected]>

Returning an error to kvm_init() is fatal anyway, no need to continue
the initialization.

Leave the `ret` variable in the function scope because it will be reused
when adding RME support.

Signed-off-by: Jean-Philippe Brucker <[email protected]>
Reviewed-by: Philippe Mathieu-Daudé <[email protected]>
Signed-off-by: Mathieu Poirier <[email protected]>
---
 target/arm/kvm.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/target/arm/kvm.c b/target/arm/kvm.c
index 7d194ea112b1..20b39d10b766 100644
--- a/target/arm/kvm.c
+++ b/target/arm/kvm.c
@@ -596,7 +596,7 @@ int kvm_arch_get_default_type(MachineState *ms)
 
 int kvm_arch_init(MachineState *ms, KVMState *s)
 {
-    int ret = 0;
+    int ret;
     /* For ARM interrupt delivery is always asynchronous,
      * whether we are using an in-kernel VGIC or not.
      */
@@ -618,7 +618,7 @@ int kvm_arch_init(MachineState *ms, KVMState *s)
         !kvm_check_extension(s, KVM_CAP_ARM_IRQ_LINE_LAYOUT_2)) {
         error_report("Using more than 256 vcpus requires a host kernel "
                      "with KVM_CAP_ARM_IRQ_LINE_LAYOUT_2");
-        ret = -EINVAL;
+        return -EINVAL;
     }
 
     if (kvm_check_extension(s, KVM_CAP_ARM_NISV_TO_USER)) {
@@ -640,13 +640,14 @@ int kvm_arch_init(MachineState *ms, KVMState *s)
             warn_report("Eager Page Split support not available");
         } else if (!(s->kvm_eager_split_size & sizes)) {
             error_report("Eager Page Split requested chunk size not valid");
-            ret = -EINVAL;
+            return -EINVAL;
         } else {
             ret = kvm_vm_enable_cap(s, KVM_CAP_ARM_EAGER_SPLIT_CHUNK_SIZE, 0,
                                     s->kvm_eager_split_size);
             if (ret < 0) {
                 error_report("Enabling of Eager Page Split failed: %s",
                              strerror(-ret));
+                return ret;
             }
         }
     }
@@ -659,7 +660,7 @@ int kvm_arch_init(MachineState *ms, KVMState *s)
     hw_breakpoints = g_array_sized_new(true, true,
                                        sizeof(HWBreakpoint), max_hw_bps);
 
-    return ret;
+    return 0;
 }
 
 unsigned long kvm_arch_vcpu_id(CPUState *cpu)
-- 
2.43.0