[libvirt] [PATCH 05/14] virsh-completer: add a cleanup label everywhere

[Ján Tomko]

Unify the cleanup paths for error and success.
Now that 'ret' is only set (from tmp) on the success path,
it is safe to jump right before 'return ret' after processing
the error block.

Signed-off-by: Ján Tomko <jtomko at redhat.com>
---
 tools/virsh-completer.c | 45 +++++++++++++++++++++++++++--------------
 1 file changed, 30 insertions(+), 15 deletions(-)

diff --git a/tools/virsh-completer.c b/tools/virsh-completer.c
index 0750945b84..46fedc06d9 100644
--- a/tools/virsh-completer.c
+++ b/tools/virsh-completer.c
@@ -111,6 +111,7 @@ virshDomainNameCompleter(vshControl *ctl,
 
     VIR_STEAL_PTR(ret, tmp);
 
+ cleanup:
     return ret;
 
  error:
@@ -120,7 +121,7 @@ virshDomainNameCompleter(vshControl *ctl,
     for (i = 0; i < ndomains; i++)
         VIR_FREE(tmp[i]);
     VIR_FREE(tmp);
-    return NULL;
+    goto cleanup;
 }
 
 
@@ -263,6 +264,7 @@ virshStoragePoolNameCompleter(vshControl *ctl,
 
     VIR_STEAL_PTR(ret, tmp);
 
+ cleanup:
     return ret;
 
  error:
@@ -272,7 +274,7 @@ virshStoragePoolNameCompleter(vshControl *ctl,
     for (i = 0; i < npools; i++)
         VIR_FREE(tmp[i]);
     VIR_FREE(tmp);
-    return NULL;
+    goto cleanup;
 }
 
 
@@ -319,6 +321,7 @@ virshStorageVolNameCompleter(vshControl *ctl,
 
     VIR_STEAL_PTR(ret, tmp);
 
+ cleanup:
     return ret;
 
  error:
@@ -329,7 +332,7 @@ virshStorageVolNameCompleter(vshControl *ctl,
         VIR_FREE(tmp[i]);
     VIR_FREE(tmp);
     virStoragePoolFree(pool);
-    return NULL;
+    goto cleanup;
 }
 
 
@@ -370,6 +373,7 @@ virshInterfaceNameCompleter(vshControl *ctl,
 
     VIR_STEAL_PTR(ret, tmp);
 
+ cleanup:
     return ret;
 
  error:
@@ -379,7 +383,7 @@ virshInterfaceNameCompleter(vshControl *ctl,
     for (i = 0; i < nifaces; i++)
         VIR_FREE(tmp[i]);
     VIR_FREE(tmp);
-    return NULL;
+    goto cleanup;
 }
 
 
@@ -421,6 +425,7 @@ virshNetworkNameCompleter(vshControl *ctl,
 
     VIR_STEAL_PTR(ret, tmp);
 
+ cleanup:
     return ret;
 
  error:
@@ -430,7 +435,7 @@ virshNetworkNameCompleter(vshControl *ctl,
     for (i = 0; i < nnets; i++)
         VIR_FREE(tmp[i]);
     VIR_FREE(tmp);
-    return NULL;
+    goto cleanup;
 }
 
 
@@ -455,11 +460,12 @@ virshNetworkEventNameCompleter(vshControl *ctl ATTRIBUTE_UNUSED,
 
     VIR_STEAL_PTR(ret, tmp);
 
+ cleanup:
     return ret;
 
  error:
     virStringListFree(tmp);
-    return NULL;
+    goto cleanup;
 }
 
 
@@ -498,6 +504,7 @@ virshNodeDeviceNameCompleter(vshControl *ctl,
 
     VIR_STEAL_PTR(ret, tmp);
 
+ cleanup:
     return ret;
 
  error:
@@ -507,7 +514,7 @@ virshNodeDeviceNameCompleter(vshControl *ctl,
     for (i = 0; i < ndevs; i++)
         VIR_FREE(tmp[i]);
     VIR_FREE(tmp);
-    return NULL;
+    goto cleanup;
 }
 
 
@@ -546,6 +553,7 @@ virshNWFilterNameCompleter(vshControl *ctl,
 
     VIR_STEAL_PTR(ret, tmp);
 
+ cleanup:
     return ret;
 
  error:
@@ -555,7 +563,7 @@ virshNWFilterNameCompleter(vshControl *ctl,
     for (i = 0; i < nnwfilters; i++)
         VIR_FREE(tmp[i]);
     VIR_FREE(tmp);
-    return NULL;
+    goto cleanup;
 }
 
 
@@ -594,6 +602,7 @@ virshNWFilterBindingNameCompleter(vshControl *ctl,
 
     VIR_STEAL_PTR(ret, tmp);
 
+ cleanup:
     return ret;
 
  error:
@@ -603,7 +612,7 @@ virshNWFilterBindingNameCompleter(vshControl *ctl,
     for (i = 0; i < nbindings; i++)
         VIR_FREE(tmp[i]);
     VIR_FREE(tmp);
-    return NULL;
+    goto cleanup;
 }
 
 
@@ -643,6 +652,7 @@ virshSecretUUIDCompleter(vshControl *ctl,
 
     VIR_STEAL_PTR(ret, tmp);
 
+ cleanup:
     return ret;
 
  error:
@@ -652,7 +662,7 @@ virshSecretUUIDCompleter(vshControl *ctl,
     for (i = 0; i < nsecrets; i++)
         VIR_FREE(tmp[i]);
     VIR_FREE(tmp);
-    return NULL;
+    goto cleanup;
 }
 
 
@@ -698,6 +708,7 @@ virshSnapshotNameCompleter(vshControl *ctl,
 
     VIR_STEAL_PTR(ret, tmp);
 
+ cleanup:
     return ret;
 
  error:
@@ -708,7 +719,7 @@ virshSnapshotNameCompleter(vshControl *ctl,
         VIR_FREE(tmp[i]);
     VIR_FREE(tmp);
     virshDomainFree(dom);
-    return NULL;
+    goto cleanup;
 }
 
 char **
@@ -820,11 +831,12 @@ virshSecretEventNameCompleter(vshControl *ctl ATTRIBUTE_UNUSED,
 
     VIR_STEAL_PTR(ret, tmp);
 
+ cleanup:
     return ret;
 
  error:
     virStringListFree(tmp);
-    return NULL;
+    goto cleanup;
 }
 
 
@@ -849,11 +861,12 @@ virshDomainEventNameCompleter(vshControl *ctl ATTRIBUTE_UNUSED,
 
     VIR_STEAL_PTR(ret, tmp);
 
+ cleanup:
     return ret;
 
  error:
     virStringListFree(tmp);
-    return NULL;
+    goto cleanup;
 }
 
 
@@ -878,11 +891,12 @@ virshPoolEventNameCompleter(vshControl *ctl ATTRIBUTE_UNUSED,
 
     VIR_STEAL_PTR(ret, tmp);
 
+ cleanup:
     return ret;
 
  error:
     virStringListFree(tmp);
-    return NULL;
+    goto cleanup;
 }
 
 
@@ -982,11 +996,12 @@ virshNodedevEventNameCompleter(vshControl *ctl ATTRIBUTE_UNUSED,
 
     VIR_STEAL_PTR(ret, tmp);
 
+ cleanup:
     return ret;
 
  error:
     virStringListFree(tmp);
-    return NULL;
+    goto cleanup;
 }
 
 
-- 
2.20.1